enphase ENCHARGE-3T-1P-NA User manual

1
QUICK INSTALL GUIDE (ENCHARGE-3T-1P-NA and ENCHARGE-10T-1P-NA)
Install the Enphase IQ Battery system
To install the Enphase IQ Battery 3T or IQ Battery 10T system and the Enphase wall-mount bracket, read and follow all warnings and instructions in this
guide. Safety warnings are listed at the end of this guide. These instructions are not meant to be a complete explanation of how to design and install an energy
storage system. All installations must comply with national and local electrical codes and standards. Only qualied electricians shall install, troubleshoot, or
replace the IQ Battery 3T or IQ Battery 10T.
The IQ Battery system includes the Enphase IQ Batteries with integrated Enphase IQ Microinverters. The Enphase IQ Gateway measures PV production and
home energy consumption. The IQ Battery system senses when it is optimal to charge or discharge the battery so that energy is stored when it is abundant
and used when scarce. IQ Battery systems are capable of providing backup power when an Enphase IQSystem Controller is installed at the site.
Five unique installation scenarios are shown:
1. Whole home backup with IQ System
Controller as service entrance and
PV combiner connected to IQ System
Controller. This is the preferred
conguration for back up of the entire
main load panel. This conguration
supports up to an 80 A breaker for the
PV circuit and an 80 A breaker for battery
storage.
2. Whole home backup with IQ System
Controller as service entrance and PV
combiner connected to main load panel.
This is the preferred conguration when
you back up the entire main load panel
and the size of the PV combiner circuit is
more than 80 A. In this conguration, the
PV combiner circuit connection space
in IQ System Controller is left vacant.
When existing PV combiner circuits are
connected to the main load panel, and
you want to add battery storage to the
system, you can keep the PV combiner
connected to the main load panel and
connect only the battery storage to IQ
System Controller.
3. Partial home backup with main load
panel as service entrance and PV
combiner connected to IQ System
Controller. When the PV circuit breaker
size is less than 80 A, this is the preferred
conguration for partial home backup
with a subpanel.
NOTE:
1. For the M215/M250 connection to Enphase
Energy System, refer to the tech brief.
2. M Series Microinverters require IQ Gateway.
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(optional)
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© 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at
https://enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the US and other countries. Data subject to change.
Rev 11/2023-12-20

2
PREPARATION
A ) Inspect the packaging and the IQ Battery(ies) for damage, such as cracks,
dents, or leaking electrolytes. Do not install or use the IQ Batteries if it
has been damaged in any way. If damaged, contact your distributor for
replacement.
B ) Ensure that your kit includes the following IQ Battery components:
• The IQ Battery 10T includes three batteries, two interconnect cable
assemblies, an IQ Battery 10T triple-width cover, and a top, middle and
bottom mounting brackets.
• The IQ Battery 3T includes one battery and a single-width cover with a
single-width mounting bracket.
NOTE: Check the “Energize By” label on the shipping box to verify that
the IQ Battery(ies) will be installed by the date shown. If the date has
passed, contact your distributor for next steps.
* WARNING: Risk of injury. Take care when lifting. The IQ Battery unit
is heavy (40.5 kg/89.3 lbs) and requires two persons to lift.
C ) Ensure you have the following Enphase items for backup systems:
• An Enphase IQ System Controller with microgrid interconnect device
(MID) functionality and an Enphase IQ Combiner.
• Internet connection through the IQ Gateway in the IQ Combiner.
Failure to maintain an internet connection may have an impact on the
warranty. See enphase.com/warranty for full terms.
• A
wireless communications kit (COMMS-KIT-01) is to be installed at
the IQ Gateway for communications with IQ Battery and IQ System
Controller. It includes a USB cable for connection to IQ Gateway/IQ
Combiner and allows wireless communication with IQ Battery and IQ
System Controller.
D ) Make sure you also have the following items:
• Mounting location that is structurally suited to bear the weight of the
IQ Battery(ies). The total weight for the IQ Battery 3T, including the IQ
Battery base unit, cover, and wall-mount bracket is 48.8 kg (107.6 lbs).
The total weight for the IQ Battery 10T, including the three IQ Battery
base units, cover, and wall-mount bracket, is 152.1 kg (335.3 lb).The
wall must contain blocking studs that can bear the battery weight or
can be of masonry or other suitable structure.
• Tools: Conduit (with ttings and tting tools), drill, 5/32 in pilot bit (or
metric equivalent), screwdriver, socket wrench, torque wrench, level,
wire stripper, and stud nder if installed on studs.
• Fasteners for wall-mount bracket. Slots are 9.2 mm (0.36 in). Check
with a structural engineer and local standards for requirements:
Single-width bracket for IQ Battery 3T: A minimum of three
#20 (5/16 in) lag bolts or screws, 7.6 cm (3 in) long (depending on
attachment wall).
Triple-width bracket for IQ Battery 10T: A minimum of fteen
#20 (5/16 in) lag bolts or screws, 7.6 cm (3 in) long (depending on
attachment wall).
• Washers for use between fastener heads and wall-mount brackets.
• Copper conductors: No. 14–8 AWG (11 mm or 7/16 in strip length)
copper conductors (rated at 75°C or 90°C) for terminals.
Conduit ttings: 1/2 in or 3/4 in (left side) hubs are required for all
installations, and NEMA Type 3R conduit ttings (hubs) are needed
when installing outdoors.
• Overcurrent protection: The overcurrent protection in IQ Battery is not branch
circuit overcurrent protection and cannot be relied upon for that purpose.
The branch circuit overcurrent protection is located in IQ System Controller
or when combined in a separate combiner. See the Enphase IQ System
Controller Quick Install Guide for more information.
• Personal protective equipment (PPE) for handling lithium batteries as
required by local safety standards.
• Protective gloves for protection against sharp edges.
E ) Verify that the main service is 120/240 VAC and not 208/120 VAC.
IQ Batteries cannot be installed where L1 to L2 measures 208 VAC.
F ) Note that the rated energy capacity of the battery is 3.36 kWh.
G ) Install the PV system and the IQ Combiner as directed by the Enphase
installation manuals.
5. Self-consumption, no IQ System
Controller. The preferred conguration
when adding battery storage and PV
for self-consumption in a grid-tied
application with no option for backup
during outages. PV and IQ Battery will
not operate when the grid is unavailable.
4. Partial home backup with main load
panel as service entrance and PV
combiner connected to the subpanel.
This is the preferred connection
conguration for partial home backup
using a subpanel when the PV circuit
breaker size is more than 80 A. The
space available in IQ System Controller
for combiner (solar) connection is left
vacant.
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3
INSTALLATION
Plan a location for the IQ Batteries
The IQ Battery housing is NEMA type 3R and can be installed indoors or out-
doors. The terminal blocks accept copper conductors of No. 14–8 AWG.
A ) Following the local standards, choose a well-ventilated location
where the ambient temperature and humidity are within -15°C to
55°C (5°F to 131°F) and 5% to 100% RH, non-condensing, preferably
out of direct sunlight. The optimum ambient temperature range
for installation location is 0ºC to 30ºC (32ºF to 86ºF). Provide
smoke alarms in the residence in accordance with building, re and
installation codes.
*WARNING: Enphase IQ Batteries have been evaluated by UL
Solutions to UL9540A Standard for outdoor and non-habitable
indoor residential installations. Installations in nished, non-habit-
able indoor spaces such as detached and attached garages, utility
closets, basements and storage or utility spaces shall be permitted.
B ) Ensure that the mounting location can sustain the total weight
of the IQ Batteries and mounting bracket. Total weight for the IQ
Battery 3T, including the IQ Battery base unit, cover and wall-mount
bracket, is 48.8 kg (107.6 lbs). Total weight for the IQ Battery 10T,
including the three IQ Battery base units, cover, and wall-mount
bracket, is 152.1 kg (335.3 lbs).
*WARNING: The installer should install blocking between studs
to ensure that no single stud carries the entire weight load of the
IQ Batteries.
C ) Plan the mounting location to be at least 15 cm (6 in) off the ground
and 15 cm (6 in) from the ceiling for IQ Battery 3T and IQ Battery
10T.
NOTE: Wherever local codes allow a smaller separation distance
for energy storage installations, the minimum spacing around IQ
Battery 10T must be at least 6 in from the top, bottom, left, and right
side of the product.
Keep the IQ Battery away from falling or moving objects, including
motor vehicles.
1
J ) The maximum conductor size for IQ Battery 3T and IQ Battery 10T is 8
AWG and the maximum breaker rating with this conductor size is 40 A.
*WARNING: If mounted in the path of a motor vehicle, we
recommend a mounting height that is 91 cm (36 in) above the oor.
D ) Ensure that there are no pipes or electrical wires where you plan to drill.
E ) Plan to maintain at least 91 cm (36 in) of clearance in front of each IQ
Battery.
F ) Consider the dimensions of the IQ Batteries, easy access, height, and
length of cable when selecting the location.
G ) Select a location where you can interconnect to the Enphase IQ System
Controller.
H ) Follow all local standards and restrictions set forth by AHJ (Authority
Having Jurisdiction).
I ) For installations with more than one IQ Battery 10T units, there must be
a separate load center, subpanel, or circuit combiner with over current
protection (a must for more than 2 ×IQ Battery 10T’s) to combine the
circuits, and you must run only one circuit for all the IQ Battery units to
the IQ System Controller (or to Enphase IQ Combiner for grid-tied-only
installations). You must select proper conductors and circuit breakers
for these circuits according to local codes, standards, and other appli-
cable requirements. The circuit breakers used would have to be suitable
for back-feeding, per NEC 408.36(D). IQ System Controller supports up
to a maximum of 80 A breaker for IQ Battery connection circuit.
Up to four IQ Battery 10Ts or twelve IQ Battery 3Ts can be safely
connected to 80 A load center.
If local and national electrical codes allow splicing of batteries, you can
congure up to 2 × 10T or (1 × 10T, 1 × 3T) or (1 × 10T, 2 × 3T) or 2 × 3Ts
using multi-tap connectors/wire nuts suitable for the environment (wet
rated if outdoors) in an external junction box.
The external junction box must be atleast 6 in from IQ System Controller
or an off-the-shelf load center and at least 6 in from the 10T Batteries.
Alternatively, install an appropriate load center with breakers per battery
circuit as needed per the system design.
Number of
IQ3T/IQ10T units Current (A) Minimum wire size (AWG) Multi-tap connector/Wire nut inside junction box
1 × IQ3T 5.3 14 Not required
2 × IQ3T 10.7 14 May be required*
3 × IQ3T 16.0 12 May be required*
1 × IQ10T 16.0 12 Not required
4 × IQ3T 21.3 10 May be required*
(1 × IQ10T + 1 × IQ3T) 21.3 10 May be required*
5 × IQ3T 27.7 8 May be required*
(1 × IQ10T + 2 × IQ3T) 27.7 8 May be required*
6 × IQ3T 32 8 May be required*
2 × IQ10T 32 8 May be required*
(1 × IQ10T + 3 × IQ3T) 32 8 May be required*
*A wire nut or a multi-tap connector is not required when all the batteries are
daisy-chained or are landing on separate breakers in a load center. A wire nut or a
multi-tap connector in a separate junction box may be required when batteries are not
daisy-chained or are not landing on separate breakers.
NOTE: 2 x 10T batteries cannot be daisy-chained and must be paralleled using a load
center or sub panel or on wire nuts/multi-tap connectors in a junction box.
NOTE: When using multi-tap connectors or wire nuts, the wires used across all batter-
ies must be sized according to the overcurrent protection requirements. For example,
when connecting two IQ Battery 10Ts, use 8 AWG wires.
IQ SC
1
Storage input
20A 20A
At least 12 AWG
At least 12 AWG
Load center
At least 8 AWG
At least 6 in
At least 8 AWG
At least 8 AWG
Multi-tap connectorMulti-tap connector
Junction boxJunction box
At least 6 in
At least 8 AWG
IQ SC 1
Storage input
1. Use off-the-shelf
panels as combin-
ers with appropri-
ately sized breakers
and conductors to
connect multiple IQ
Batteries.
2. Use multi-tap
connectors in an ex-
ternal junction box
to splice multiple IQ
Batteries if allowed
by local and national
codes.
Correct wiring methods
S. No. Type Specication Model
1 Junction box Minimum 6×6×4 in, outdoor rated, side/
bottom cable entry only, no top cable entry Carlon #E987RR
2 Multi-tap connector Wet-rated, 14—6 AWG POLARIS ISPB2/0-3
3 Wire nut Waterproof DRYCONN #62335
4 load center Outdoor rated Homeline
HOM24L70RBCP
5 Breaker 20 A, 40 A BR20, BR20B, BR40,
BR40B
NOTE: Ensure all items, conduits, ttings, and junction boxes suit the environment and
are appropriately rated in accordance with local and national electrical codes.
Examples of third-party equipment are in the following table.
Similar third-party equipment that complies with the local regulations and
requirements can be used.
K) Guidance on wiring methods:
10T210T2
10T210T2
Junc�on box
Mul�-tap
connectors/wire
nuts
At least 6 in
At least 8 AWG
40A40A
Load center
At least 8 AWG
At least 6 in
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At least 4 AWG
At least 6 in
10T2
10T2
10T2
10T2
1. IQ System Controller
2. IQ 10T Battery
2.a
2.b
NOTE: Avoid tight bend radius when using an external junction box or load center.
NOTE: Ensure the multi-tap connector screws and wire nuts are torqued appropriately
per the manufacturer’s wire recommendation.
+ DANGER!
Risk of re. Do
not use conduit
entry on top
of the junction
box. Use side,
bottom, or
rear entry as
allowed by the
junction box.
Water ingress
due to top
conduit entry
may cause
equipment
damage.

4
Mounting on vertical stud
IQ Battery 3T
NOTE: The above image is just for reference. Use other slots on the wall mount if addi-
tional xing is required for stability (to be assessed by the installer).
Wood stud
Single-width mounting bracket
Front view Angle view
Wall-mount slots
Unit-mount
keyholes
478 mm
43 mm
418 mm
9.2 mm
IQ Battery 3T — single-width bracket
A ) Place the wall-mount bracket on the wall so that the mounting holes of the
bracket align with the center of the stud.
* WARNING! Risk of injury and equipment damage. Use the unit mounting
holes only to mount the base unit of IQ Battery to the wall mount. Do not
use the unit mounting holes to secure the bracket to the wall.
B ) Use a level to keep the wall-mount bracket leveled.
C ) Use #20 (5/16″) screws (or masonry attachments for masonry) to attach
the bracket using one screw and washer for each slot (9.2 mm/0.36″). Use
minimum of three screws in each mounting bracket. Tighten all screws to
manufacturer specied torque values.
D ) Verify that the wall-mount bracket is solidly attached to the wall.
* WARNING! Risk of injury and equipment damage. Do not mount an IQ
Battery 3T on a bracket that is not properly mounted.
E ) If installing additional batteries, install adjacent wall-mount brackets, as
needed. Be sure to align the mounting holes in the wall-mount bracket to
the center of the wall stud. You may install another row of brackets above
the one already installed. Maintain at least 15 cm (six inches) vertical
clearance between rows and and 2.54 cm (1 inch) horizontal clearance
between units of IQ Battery 3T installations, and ensure that the wall can
support the structural load (weight) of the installation.
* WARNING! Risk of injury and equipment damage. Do not install more than
three IQ Battery 3T units per 20 A branch circuit.
Vertical +5° inclination -5° inclination
430 mm
775 mm
188mm
4
Allowable tilt from vertical for IQ Battery installation:
* If the difference in atness is more than 2 mm, recommend installing
a substructure like unistrut for better alignment of the units.
IQ Battery 10T
MOUNTING SURFACE
IQ Battery 3T
MOUNTING SURFACE
Mounting Surface Flatness
(Across the Installation width and
height) recommended to be within
2mm*
Install the IQ Battery 3T (single-width) or IQ Battery 10T
(triple-width) wall mount bracket
Follow the instructions below for the bracket you are installing.
* WARNING! Risk of injury and equipment damage. Attach the wall mount
to the wall so that it is no more than ve percent tilted from vertical. See the
following image for reference:
Prepare to install the wall-mount bracket
A ) Make sure that the planned position for the wall-mount bracket meets
clearance requirements as shown. The image depicts a single-width
bracket for the IQ Battery 3T, but clearances and requirements are the
same when installing a triple-width bracket for the IQ Battery 10T.
B) Ensure that the mounting location can sustain the weight of the IQ
Batteries and mounting bracket. The total weight for the IQ Battery 3T,
including the mounting brackets and cover, is 48.8 kg (107.6 lbs), while
the total weight for IQ Battery 10T, including the mounting bracket and
cover, adds up to 152.1 kg (335.3 lb).
C ) Starting at the installation position closest to the power source, mark a
level line on the wall as a guide.
* WARNING! Multiple risks. Make sure not to drill or attach to electric
wiring or pipes that are in the wall.
3
Install the AC disconnect
Following all local codes and standards:
A ) Install an AC disconnect that can break the maximum rated current of the
branch circuit under load. The AC disconnect must be readily accessible
and located within line-of-sight of IQ Battery, per NEC 2017 706.7(A).
B ) Each IQ Battery unit is suitable for use with up to No. 8 AWG wires
on a maximum 40 A branch circuit. If more than 32 A of IQ Batteries
(corresponding to a 40 A branch circuit) are installed, a separate subpanel
must be installed between the IQ Battery units and IQ System Controller to
combine the IQ Battery circuits together. All circuit breakers in the subpanel
must be suitable for back-feeding, per NEC 408.36(D).
C ) Verify that AC voltage at the site is within range: Single-phase L1 to L2
voltage must measure between 211 and 264 VAC, while L-N should
measure between 106 and 132 VAC.
2
*WARNING: Parallel power production sources only. Do not connect
load circuits.
+ DANGER! Do not use the wiring compartment of any IQ Battery
3T/10T as a junction box to splice conductors. Space available within
the compartment may not meet thermal requirements.
Multi-tap connector
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2. Do not use
multi-tap connec-
tors inside the IQ
Battery’s wiring
compartment.
Incorrect wiring methods
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Terminal blocks
1. Do not splice
wires on the IQ
Battery’s wiring
terminals.
10T2
10T2
10T2
10T2
1. IQ System Controller
2. IQ 10T Battery

5
Prepare for eld wiring
+ DANGER! Risk of electric shock. The DC switch must be in the
Locked position before performing this step.
A ) Drill the left wall of eld wiring compartment to accommodate the conduit.
B ) Connect eld wiring to the top three terminal blocks.
C ) Size the conductors (Lines and Ground) to account for voltage rise and
to conform to the tables below. Design for a voltage rise of less than
2%. IQ Battery can use any circuit breaker size between 10 A and 40 A.
Breaker rating and wire size are installation dependent.
Number of
IQ3T/IQ10T units Current (A) Minimum wire size (AWG) Breaker rating (A)
1 × IQ3T* 5.3 14 10
2 × IQ3T 10.7 14 15
3 × IQ3T or 1 × IQ10T** 16.0 12 20
4 × IQ3T or (1 × IQ10T + 1 × IQ3T) 21.3 10 30
5 × IQ3T or (1 × IQ10T + 2 × IQ3T) 27.7 8 35
6 × IQ3T or 2 × IQ10T or
(1 × IQ10T + 3 × IQ3T) 32.0 8 40
*IQ3T refers to IQ Battery 3T
**IQ10T refers to IQ Battery 10T
6
I ) Use six number of #20(5/16″) screws and utilize six wall-mount slots to
attach top wall-mount bracket on the wall.
* WARNING! Risk of injury and equipment damage. Do not mount IQ
Battery 10T units on a bracket that is not properly mounted.
J ) If installing additional batteries, install adjacent wall-mount brackets, as
needed. Be sure to align the mounting holes in the wall-mount bracket to
the center of the wall stud. You may install another row of brackets above
the one already installed.
Maintain at least 15 cm (6 in) vertical clearance between rows and
and 15 cm (6 in) horizontal clearance between units of IQ Battery 10T
installations, and ensure that the wall can support the structural load
(weight) of the installation.
* WARNING! Risk of injury and equipment damage. Do not install more
than one IQ Battery 10T unit per 20 A branch circuit.
C
b
a
d
DC Switch
Bottom screw hole
Mount the IQ Battery(ies) on the wall
* WARNING: Risk of injury. Take care when lifting. Each IQ Battery
base unit is heavy (40.5 kg/ 89.3 lbs) and requires two persons to lift.
* WARNING! Risk of injury and equipment damage. Avoid dropping the
IQ Battery(ies). Doing so may create a hazard, cause serious injury, and/
or damage the equipment.
* WARNING! Risk of injury and equipment damage. Protect the IQ
Battery(ies) from impact damage and improper use.
* WARNING! Risk of injury and equipment damage. Do not hold the
microinverters to lift the unit during installation.
A ) Two person together must lift a single IQ Battery base unit from the
packaging and place it in upright position (as shown in image) on a at
surface.
B ) Locate the IQ Battery lifting points.
C ) The rst person lifting must use points aand d(as shown) to lift the
battery.
D ) The second person lifting must use points band c(as shown) to lift the
battery.
E ) Together, lift the IQ Battery and bring it to the already mounted bracket.
F ) Hold the IQ Battery straight so that the four bolts on the back of the
IQ Battery pass through the four keyhole slots on the corner of the
mounting bracket.
* WARNING! Risk of injury and equipment damage. Do not release the
IQ Battery unit until you ensure that the IQ Battery unit is fully seated in
the wall-mount bracket shelf.
G ) Once all four battery bolts fully pass through the mounting bracket
keyhole slots, lower the battery down until fully seated within the wall-
mount bracket and set into the bottom of the keyholes.
H ) Attach the battery to the mounting bracket aligning the screw hole
at the bottom of the battery with the screw hole at the bottom of the
bracket. Tighten the bottom screw to 8 N m (70.8 lb-in).
I ) To record the installation of each IQ Battery base unit, scan the serial
number label using Enphase Installer App and your mobile device.
5
417 mm
61 mm 284.5 mm
G ) Use three number of #20 (5/16″) screws and utilize three wall mount
slots that are common between middle and bottom wall-mount
brackets to attach bottom wall-mount bracket on wall.
H ) Place the top wall-mount bracket sitting on top of middle wall-mount
bracket as shown in the following image.
417 mm
61 mm
D ) The screws in the area below the red-dotted rectangle is utilized in the
next steps.
E ) Verify that the wall-mount bracket is solidly attached to the wall.
F ) Place the bottom wall-mount bracket below the middle bracket aligning
the holes and edges as shown in the follwoing image.
1270 mm
417 mm
Triple-width mounting bracket Wall-mount
slots
Unit-mount
keyholes
IQ Battery 10T — triple-width bracket
A ) Place the middle wall-mount bracket on the wall so that the mounting
holes of the bracket align with the center of the stud, and the mounting
holes on the left and right align with the adjacent studs.
* WARNING! Risk of injury and equipment damage. Use the unit mount-
ing holes only to mount the base unit of IQ Battery to the wall mount.
Do not use the unit mounting holes to secure the bracket to the wall.
B ) Use a level to keep the wall-mount bracket leveled.
C ) Use #20 (5/16″) screws (or masonry attachments for masonry) to
attach the bracket using one screw and washer for each slot (9.2
mm/0.36″). Use a minimum of six screws in each middle mounting
bracket (within the red dotted rectangle) to support three IQ Battery
units. There is an array of slots so that you can choose those that allow
you to mount the bracket on studs. Tighten all screws to manufacturer
specied torque values.

6
Install conduit and eld wiring
+ DANGER! Risk of electric shock. The DC switch must be in the
locked position before performing this step.
A ) If installing an IQ Battery 10T, install the interconnect cable assembly.
• Face the front of the batteries, and insert the interconnect cable
assembly through the front cable slot from within the eld wiring
compartment, with the arm of the interconnect cable pointing up,
making a “U” shape.
B ) Using the conductors and suitable conduits, connect the AC disconnect
and the rst adjacent IQ Battery. Use the conduit openings provided to
connect the conduit and pass the wires through them. If an Enphase
IQ System Controller is in line-of-sight, the breaker can service as a
disconnect.
* WARNING! Risk of equipment damage. Do not modify or rewire the
pre-installed wiring or bonding connections in the eld wiring compart-
ment.
* WARNING! Risk of equipment damage. Always connect to two
Lines (active) and one ground.
C ) Connect each wire in the eld wiring compartment to its corresponding
terminal (Lines and Ground). Tighten to 1.6 N m (14 lb-in).
D ) If installing an IQ Battery 10T, secure the inter-connection cable
assembly between the IQ Battery units. You must connect the intercon-
nect cable to the bottom three terminal blocks for the left unit and the
top three terminal blocks for the right unit.
7
2
3
1
4
1. Terminal for L1 in
from conduit
opening
2. Terminal for L2
in from conduit
opening
3. Terminal for
ground in from
conduit opening
4. DC Switch
Interconnect
cable
Ensure that the
interconnect
cable is properly
seated in the
slot.
Assemble using two
M4 screws from the
cover accessories kit:
Tighten to 1.9 N m/16.8 lb-in.
12
Tab 1 and 2 to
be broken
Tab 2 to be
broken
Tab 1 to be
broken
1
2
+ DANGER! Risk
of electric shock. The
system is not ready
to be energized! Do
not close the circuit
breaker or turn ON the
DC switch.
E ) After all wires in the eld wiring compartment are connected and
secured, check that there are no exposed conductors.
F ) If connecting additional IQ Batteries, use another conduit and another
set of wires to connect between eld wiring compartment.
G ) Gently arrange all the wires and connectors inside the eld wiring
compartment.
H ) Secure the eld wiring compartment cover. Use a cross-head screw
driver to tighten the cover screws to 2.3 N m (20.3 Ib-in).
I ) Break tab 1, tab 2,
or both tabs on the
eld wiring door
along the yellow
lines indicated for
interconnect cable
entry as shown.
J ) Do not break tabs
when installing the
IQ Battery 3T.
Location for
conduit cut out
Finished
goods serial
numbers
labels
PCBA serial
numbers
In all cases in the table, it is possible to always use larger conductors and
a breaker sized for that conductor or smaller. For example in row 3, with 3
× IQ3T or 1 × IQ10T, it is possible to use:
a) 12 AWG wire with 20 A breaker, or
b) 10 AWG wire with 20 A or 30 A breaker, or
c) 8 AWG wire with 30, 35, or 40 A breaker
+ DANGER! Risk of electric shock. Check that the dedicated circuit
breaker protecting the branch where the IQ Battery(ies) will be
connected is turned off before wiring.
* WARNING! Risk of equipment damage. The DC switch must be OFF
before installing, otherwise IQ Battery will try to form a grid.

7
C ) Slide the IQ Battery cover in the indicated direction so that the hook of
the cover in the highlighted region goes into the slot provided for it in the
main unit (both sides of the main unit).
D ) Pull out the lower edges while sliding in the
cover and ensure that the tabs are locked to the back
plate as shown below before releasing.
8
F ) After assembling the IQ Battery cover, remove the break-out tab from
the conduit cover and assemble it with the ribs
snapping in as shown.
G ) Break the conduit cover tab along the yellow
line as indicated before assembling to the main
unit.
IQ Battery 10T cover
NOTE: The preceeding IQ Battery 10T cover image is for reference
purposes only.
Cover and energize the system
*WARNING: Before energizing, make sure that all IQ Batteries in the
system are properly installed and conductors terminated.
* WARNING! Risk of equipment damage. Ensure that no wires are
pinched before replacing the cover.
NOTE: Check the box for updates on cover installation instructions.
IMPORTANT: Sections 8 and 9 will depict instructions for assembly and
disassembly of IQ Battery 3T cover, similar instructions are applicable for
IQ Battery 10T cover.
A ) Check that the eld wiring compartment cover(s) for all IQ Batteries in the
system are closed and secured.
*WARNING: Complete the Enphase IQ System Controller and En-
phase IQ Combiner installations before turning the DC switch(es) ON.
+DANGER: Risk of electric shock. Before continuing, check that IQ
Battery units are properly wired, and ground connection does not have a
L1 or L2 connection, as this introduces a safety hazard.
• Apply AC power to the IQ Battery circuits. Do NOT turn ON the IQ
Battery DC switch(es).
• Use a Voltmeter to measure the IQ Battery chassis metal to ground (e.g.,
grounded conduit) voltage and ensure there is no AC voltage source
present. If wiring is incorrect, a ground fault may exist, and the AC voltage
may read ~120 VAC. If voltage is present, DO NOT touch the chassis, and
immediately remove AC power from the IQ Battery circuits and correct the
wiring.
+DANGER: Risk of electric shock. AC voltage might be present at
the output, when the DC switch is ON.
*WARNING: Branch Circuit protection for IQ Battery must be ON
(with AC voltage present) before turning the DC switch ON. Wait for 15
seconds after turning the branch circuit protection ON and check that
the LED on IQ Battery is ON (Any color LED is ON) before turning the DC
switch ON.
Before pushing
into place: Locked into
place:
IQ Battery 3T cover
E ) Once the cover reaches the position as shown in the side view image.
push the top portion of the cover and make sure that the cover is
locked in place, in the indicated regions.
B ) Turn ON the AC power rst (branch circuit protection) and then turn ON
the DC switches of the IQ Batteries.
NOTE: Do NOT leave the IQ Battery unit’s DC switch in the ON position for any
extended period of time (such as overnight or for more than 24 hours) unless
IQ Battery is commissioned (communicating with IQ Gateway), connected
to AC, and has passed functional testing and is operational. Leaving the DC
switch ON without an AC connection and communication with the system will
drain the battery and may cause damage to the battery cells such that they no
longer be able to charge. Damage resulting from this improper installation
and misuse is not covered under the product’s limited warranty.

8
State Description
Uncommissioned
Flashing blue After booting up, IQ Battery has paired with an IQ Gate-
way but has not passed the commissioning three-way
handshake to conrm that it is an Enphase device.
Flashing green After passing the three-way handshake with the IQ
Gateway.
After commissioning (normal operation)*
Rapidly ashing yellow Starting up / Establishing communications
Red ashes in sequences of 2 Error. See “Troubleshooting”.
Solid yellow Not operating due to high temperature. See “Trouble-
shooting”.
Solid blue or green Idle. Color transitions from blue to green as state of
charge increases. Check Enphase Installer App for
charge status.
Slowly ashing blue Discharging
Slowly ashing green Charging
Slowly ashing yellow Sleep mode activated
Off Not operating. See “Troubleshooting”.
* IQ Batteries have a one-hour orphan timer. If the IQ Gateway stops communicating with
them, after one hour, the IQ Batteries return to an “uncommissioned” state.
bOperating mode and set points
IQ Battery supports multiple storage interactive system modes based on
usage.
A ) Using Enphase Installer App, select Menu > Settings > Battery Storage.
B ) Select one of three battery modes:
• Self-consumption mode (default, no setting change required)
• Savings mode
• Full backup
For more information on Operation modes, refer to Storage System Owner’s
guide at enphase.com/en-us.
cTroubleshooting
If the IQ Battery(ies) are not operating correctly, do the following. If the issue
persists, contact Enphase at enphase.com/en-us/support/contact.
A ) If the IQ Battery(ies) do not operate, check the temperature in the room
and increase cooling and/or ventilation as required. Check that the front,
and top sides of the IQ Battery 3T and IQ Battery 10T have at least 15 cm
(6 in) of unobstructed clearance.
B ) If the IQ Battery LED is off, turn off the breaker for the branch circuit, wait
for at least one minute, and turn it back on.
NOTE: During a brownout or blackout, the IQ Battery powers down
automatically. This is normal. When power is restored, it automatically
starts up again.
C ) If you do not see IQ Battery information in Enphase Installer App, check
that the IQ Gateway and the Internet connection are working. If the issue
persists, contact Enphase Support at
https://enphase.com/contact/support.
A ) Use the Enphase Installer App to commission the IQ Battery(ies). Once
connected to the IQ Gateway, refer to the Enphase Installer App help
topics for more information.
B ) After the IQ Gateway has detected the IQ Battery(ies), the IQ Battery
LEDs operate as described in the following section.
CONFIGURE and ACTIVATE
OPERATION
aLED overview
After being commissioned, the LED ashes yellow while each IQ Battery
boots up. If the LED rapidly ashes green for more than two minutes, the bat-
tery is in trickle charge mode and will remain so until it reaches a minimum
state of charge (up to 30 minutes). After the IQ Battery is booted up, the LED
becomes blue or green depending on the charge level. If the LED ashes
yellow after one hour or changes to a ashing red state, contact Enphase Sup-
port at https://enphase.com/contact/support.
9
Ensure that the IQ Battery cover reaches the position shown in the side
view image after the completion of step B.
Before step B After step B
IQ Battery 10T cover
Limitation of use :
Your IQ Battery unit is not intended for use as a primary or backup power
source for life-support systems, other medical equipment, or any other use
where product failure could lead to injury, loss of life, or catastrophic property
damage. Enphase disclaims any and all liability arising out of any such use of
your IQ Battery unit. Further, Enphase reserves the right to refuse to provide
support in connection with any such use and disclaims any and all liability
arising out of Enphase’s provision of, or refusal to provide, support for your IQ
Battery device in such circumstances.
NOTE: The preceeding IQ Battery 10T cover image is for reference
purposes only.
Disassembly of the IQ Battery cover
D ) Pull out the cover in the indicated direction.
C ) Pull out the lower portion of the cover in the directions shown below and
move it away from the wall slightly(in order to unlock the highlighted
angular tabs).
A ) Remove the conduit cover from the IQ Battery cover.
B ) Using the hand access slots pull the top plastic grill
slightly in the direction shown below (in order to
unlock the top plastic cover from the ribs highlighted
in red).
IQ Battery 3T cover
Hand access slots

9
Enphase Support: https://enphase.com/contact/support
Safety and advisory Symbols
+DANGER: This indicates a hazardous situation, which if not avoided, will result in
death or serious injury.
*WARNING: This indicates a situation where failure to follow instructions may be a
safety hazard or cause equipment malfunction. Use extreme caution and follow
instructions carefully.
✓NOTE: This indicates information particularly important for optimal system opera-
tion. Follow instructions carefully.
Safety instructions
+DANGER: Risk of electric shock. Risk of re. Only qualied electricians should install,
troubleshoot, orreplace the IQ Battery(ies).
+DANGER: Risk of re or explosion. Only qualied personnel, using personal protective
equipment (PPE) should transport or handle the IQ Battery(ies).
+DANGER: Risk of explosion. Do not dispose of IQ Battery(ies) in a re or by burning.
The IQ Battery(ies) can explode.
+DANGER: Risk of re or explosion. This product is designed for stationary installa-
tion only and should be used accordingly. It is not designed for mobile applications
such as installation and on vehicles and trailers and should not be used in such
applications.
+DANGER: Risk of re. During use, when stored, or during transport, keep the IQ Bat-
tery(ies) in an area that is well ventilated and protected from the elements, where
the ambient temperature and humidity are within -15°C to 55°C (5°F to 131°F) and
5% to 100% RH, non-condensing, preferably out of direct sunlight. Do not install the
IQ Battery(ies) at elevations over 2500 m (8,200 feet) above sea level.
+DANGER: Risk of re. If the IQ Battery(ies) generate smoke, remove AC power from
the Enphase System and turn the DC connect switch to the off position so that
charging/discharging stops.
+DANGER: Risk of electric shock. Risk of re. Do not attempt to repair the IQ Bat-
tery(ies). DO NOT OPEN THE ENCLOSURE -- NO SERVICEABLE PARTS. Tampering
with or opening the IQ Battery(ies) will void the warranty. If the IQ Battery(ies) fail,
contact Enphase Customer Support for assistance at
https://enphase.com/contact/support
+DANGER: Risk of electric shock. Do not use Enphase equipment in a manner not
specied by the manufacturer. Doing so may cause death or injury to persons, or
damage to equipment.
+DANGER: Risk of electric shock. Do not install the IQ Battery(ies) without rst
removing AC power from the photovoltaic system. Disconnect the power coming
from the photovoltaics before servicing or installing.
+DANGER: Risk of electric shock. Always de-energize the AC branch circuit during
an emergency and/or before servicing the IQ Battery(ies). Never disconnect the DC
switch under load.
+DANGER: Risk of electric shock. Risk of high short-circuit current. Observe the
following precautions when working on batteries:
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
• Wear insulating gloves and boots.
• Do not lay tools or metal parts on top of batteries.
+DANGER: Risk of electric shock. Risk of re. Do not work alone. Someone should be
in the range of your voice or close enough to come to your aid when you work with
or near electrical equipment.
+DANGER: Risk of re. Do not allow or place ammable, sparking, or explosive items
near the IQ Battery(ies).
+DANGER: Risk of electric shock. In areas where ooding is possible, install the IQ
Battery(ies) at a height that prevents water ingress.
+DANGER: Risk of electric shock. AC voltage is present at the output when the DC
switch is on.
+DANGER: Risk of electric shock. Branch circuit protection must be off before
switching DC power on or off.
+DANGER: Risk of electric shock. The DC switch must locked in the OFF position for
shipping and service.
+DANGER: Do not use the wiring compartment of any IQ Battery 3T/10T as a
junction box to splice conductors. Space available within the compartment may
not meet thermal requirements.
+DANGER: Risk of re. Do not use conduit entry on top of the junction box. Use
side, bottom, or rear entry as allowed by the junction box. Water ingress due to top
conduit entry may cause equipment damage.
*WARNING: Risks of electric shock, energy hazard, and chemical hazard. Do not
disassemble.
*WARNING: Risk of equipment damage. During use, storage, transport, or installa-
tion, always keep the IQ Battery(ies) in an upright position.
*WARNING: You must install the IQ Battery(ies) only on a suitable wall using an
Enphase wall-mount bracket.
*WARNING: Before installing or using the IQ Battery(ies), read all instructions and
cautionary markings in this guide and on the equipment.
*WARNING: Do not install or use the IQ Battery(ies) if it has been damaged in any
way.
*WARNING: Do not exceed the maximum number (3) of IQ Batteries in a 20 A AC
branch circuit.
*WARNING: Do not sit on, step on, place objects on, or insert objects into the IQ
Battery(ies).
*WARNING: Do not place beverages or liquid containers on top of the IQ Battery(ies).
Do not expose the IQ Battery(ies) to liquids or ooding.
*WARNING: When placing the IQ Battery(ies) in storage, ensure that AC power is not
present and that the DC switch is in the Locked position. While in storage, damage
to the battery can occur from over-discharge. If the battery state of charge falls
to 0%, the IQ Battery(ies) can be damaged or destroyed. Because of this, the IQ
Battery(ies) must only be stored for a limited amount of time.
• The IQ Battery(ies) must be installed and energized by the “Must
Energize By” date on the shipping box label.
• The IQ Battery(ies) must have a charge state of no more than 30%
when placed in storage. To do this, the IQ Battery(ies) must be placed
in Sleep Mode.
•If the IQ Battery has already been installed, it must be placed
into Sleep Mode prior to uninstalling. A battery in Sleep Mode can be
stored a maximum of two months after being placed into Sleep Mode.
✓NOTE: Perform installation and wiring, including protection against lightning and
resulting voltage surge, in accordance with all applicable local electrical codes and
standards.
✓NOTE: Because IQ Battery(ies) are grid forming, you must install signage in accord-
ance with NEC articles 705, 706, and 710.
✓NOTE: Using unapproved attachments or accessories could result in damage or
injury.
✓NOTE: Install properly rated over current protection as part of the system installa-
tion.
✓NOTE: To ensure optimal reliability and to meet warranty requirements, the IQ Bat-
tery(ies) must be installed and/or stored according to the instructions in this guide.
✓NOTE: The IQ Battery(ies) are compatible only with the IQ Gateway communi-
cations gateway properly tted with USB hub, USB radios, and production and
consumption CTs. The IQ Gateway is required for operation of the IQ Battery(ies).
Earlier versions of the Enphase Gateway communications gateway are incompat-
ible.
✓NOTE: The Enphase IQ Battery(ies) are intended to operate with an internet connec-
tion. Failure to maintain an Internet connection may have an impact on the warran-
ty. See Limited Warranty for full terms and services (enphase.com/warranty).
✓NOTE: When replacing Enphase IQ Battery(ies), you must replace with an IQ Bat-
tery(ies) of the same type, with the same AC current rating.
✓NOTE: When disconnected and stored, no automatic charge of the battery is
possible.
✓NOTE: Properly mount the IQ Battery(ies). Ensure that the mounting location is
structurally suited to bearing the weight of the IQ Battery(ies).
✓NOTE: During use, storage, and transport, keep the IQ Battery(ies):
• Properly ventilated
• Away from water, other liquids, heat, sparks, and direct sunlight
• Away from excessive dust, corrosive and explosive gases, and oil smoke
• Away from direct exposure to gas exhaust, such as from motor vehicles
• Free of vibrations
• Away from falling or moving objects, including motor vehicles. If mounted
in the path of a motor vehicle, we recommend a 91 cm (36 in)
minimum mounting height
• At an elevation of lower than 2,500 m (8,200 feet) above sea level
• In a location compliant with re safety regulations
• In a location compliant with local building codes and standards
✓NOTE: Conditions for the IQ Battery installation site also apply to storage condi-
tions.
SAFETY
IMPORTANT SAFETY INSTRUCTIONS. SAVE THESE INSTRUCTIONS. This guide contains important instructions that you must follow during the installa-
tion and maintenance of the Enphase IQ Battery(ies). Failing to follow any of these instructions may void the warranty (enphase.com/warranty).
In case of re or other emergency
In all cases:
• If safe to do so, switch off the AC breaker for the IQ Battery circuit, and if an
isolator switch is present, switch off the AC isolator for the IQ Battery circuit.
• Contact the re department or other required emergency response team.
• Evacuate the area.
In case of re:
• When safe, use a re extinguisher. Suitable types are A, B, and C dry chemical
re extinguishers. Additional extinguishing media include carbon dioxide, or
alcohol-resistant foams.
In case of ooding:
• Stay out of the water if any part of the IQ Battery(ies) or wiring is submerged.
• If possible, protect the system by nding and stopping the source of the
water, and pumping it away.
• If water has contacted Enphase equipment, such as IQ Battery(ies) or IQ
System Controller, IQ Combiner, IQ Gateway, they should be replaced. Please
work with your installer to evaluate next steps.
In case of unusual noise, smell or smoke:
• Ensure nothing is in contact with the IQ Battery(ies) or in the venting area of
the IQ Battery(ies).
• Ventilate the room.
• Contact Enphase Customer Support at https://enphase.com/contact/support.
Safety instructions continued
Environmental Protection
ELECTRONIC DEVICE: DO NOT THROW AWAY. Waste electrical
products should not be disposed of with household waste.
Proper disposal of batteries is required. Refer to your local
codes for disposal requirements.

10
Revision history
REVISION DATE DESCRIPTION
140-00176-11 December 2023
Updates on page 3
• Removal of 2 × 8 AWG wires on battery terminals
• New SLDs for correct and incorrect wiring methods
• Guidance on cable sizes for various IQ battery 10T/3T system
combinations
• Guidance on use of third-party muti-tap connectors/wire nuts
Update on page 9
• New entries in the “Safety instructions” section
140-00176-10 July 2023 Updated product graphics.
Previous releases.
© 2023 Enphase Energy. All rights reserved. Enphase, the e and CC logos, IQ, and certain other marks listed at
https://enphase.com/trademark-usage-guidelines are trademarks of Enphase Energy, Inc. in the US and other
countries. Data subject to change.