POMCube PBT-LI409100S2 User manual

Mega Storage
User Manual
Published in January 2022

TABLE OF CONTENTS
Preface ............................................................................................................. 1
Legal Compliance ............................................................................................ 1
Disposal and Recycling ..................................................................................1
FCC Statement ...............................................................................................2
Safety Instructions ...........................................................................................3
Warning Label ............................................................................................... 3
General Information ..................................................................................... 4
Installation Conditions ..................................................................................5
Cleaning and Maintenance .......................................................................... 7
Emergency Situations ................................................................................... 8
About Mega...................................................................................................10
Overview ..................................................................................................... 10
Parts and Features ...................................................................................... 10
Specifications .............................................................................................. 15
Installation ..................................................................................................... 17
Tools and Safety Gear ................................................................................. 17
Mounting .....................................................................................................18
Internal Wiring ............................................................................................ 21
External Wiring ........................................................................................... 25
Accessories Installation .............................................................................. 26
Safety Check ................................................................................................27
Basic Operations ........................................................................................... 28
Boot System ................................................................................................ 28
Shut Down System ......................................................................................28
Reboot System ............................................................................................ 28
Getting Started with the APP ..................................................................... 28
Network Connection .................................................................................. 29
Reset Network .............................................................................................29
Troubleshooting............................................................................................ 30
Network failure ........................................................................................... 30
Fault Codes of BCMS LED Display .............................................................. 31
Warranty and Service ....................................................................................34
Limited Warranty ........................................................................................ 34
Remedies .....................................................................................................35
Warranty Exclusions ................................................................................... 35
Warranty Disclaimer and Limitation of Liability ........................................36

Legal Rights ................................................................................................. 37
Service ......................................................................................................... 37

1
Preface
Thank you for purchasing POMCube Mega, a versatile battery system. In order
to use your device safely, efficiently, and effectively, please read the User
Manual thoroughly and follow the instructions provided before use. Please
keep this User Manual for future reference.
This manual applies to the following products:
PBT-LI409100S2
PBT-LI512100S2
All specifications and descriptions contained in this document are verified to be
accurate at the time of printing. However, POMCube reserves the right to
change products information and specifications without notice. Products and
specifications discussed herein are for reference purposes only. All information
discussed herein may change without notice and without warranties of any
kind. This document and all information discussed herein remain the sole and
exclusive property of POMCube.
Mega system may be updated for technical reasons without prior notice.
Purchasing this product indicates that you have acknowledged it and accepted
it. Please visit www.pomcube.com for the latest updates.
Legal Compliance
Disposal and Recycling
This symbol on the product or on its packaging indicates that this
product must not be disposed of with your other household waste.

2
Instead, it is your responsibility to dispose of your waste equipment by handing
it over to a designated collection point for the recycling of waste electrical and
electronic equipment. The separate collection and recycling of your waste
equipment at the time of disposal will help conserve natural resources and
ensure that it is recycled in a manner that protects human health and the
environment. For more information about where you can drop off your waste
equipment for recycling, please contact your local city office, your household
waste disposal service, or the shop where you purchased the product.
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference
that may cause undesired operation.
DANGER: Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate the
equipment.
RF Warning Statement
The device has been evaluated to meet general RF exposure requirement. The
device can be used in portable exposure conditions without restriction.

3
Safety Instructions
DANGER: These safety instructions provide important safety information
and should be always observed. Please read them before using the
product.
Warning Label
Please pay attention to the warning labels and follow the instruction
mentioned.
POMCube disclaims all liability for any accidents or damage caused by using the
product in ways that are not described in this User Manual or by using
non-genuine parts or accessories.
Warning labels description
DANGER
DANGER indicates a potentially hazardous situation which, if not
avoided, could result in injury, death, or damage to Mega.
CAUTION
CAUTION indicates potentially hazardous situation which, if not
avoided, could result in medium/slight injury or damage to Mega.
BURN
DO NOT TOUCH a running Mega because the shell is hot when
Mega is running.
DELAYED
DISCHARGE
High voltage exists after Mega is powered on. Only qualified
and trained electrical technicians are allowed to perform
operations on Mega.
Residual voltage exists after Mega is powered off. It takes 5
minutes for Mega to discharge to a safe voltage.
Indicates that the operating instructions in this manual should be
considered when operating Mega or control close to where the

4
symbol is placed.
Indicates that Mega is capable of being recycled.
NOTE
NOTE indicates an important step or tip that leads to best
results, but is not safety or damage related.
General Information
DANGER: Read this entire document before installing or using Mega.
Failure to read or follow any of the instructions or warnings in this
document can result in electrical shock, serious injury, death, or can
damage the product, potentially rendering it inoperable.
DANGER: A battery can present a risk of electrical shock, fire, or explosion
from vented gases. Observe proper precautions.
DANGER: Mega must be installed by only POMCube authorized persons
who have been trained in working with high voltage electricity.
DANGER: It shall be installed by at least 2 persons.
DANGER: Use Mega only as directed.
DANGER: Do not handle the device or its components with wet hands,
otherwise electric shock or death may occur.
DANGER: Do not use Mega if it is defective, appears cracked, broken, (or
otherwise damaged) or fails to operate.
DANGER: Before wiring, ensure that Mega is switched off. Open any
associated breakers or disconnect switches.
DANGER: To protect the product and its components from damage when
transporting, handle with care. Do not impact, pull, drag, or step on Mega.
Do not subject Mega to any high forces. To help prevent damage, leave
Mega in its shipping packaging until it is ready to be installed.
DANGER: Any installations must comply with The National Electric Code
(NEC) and local codes.
DANGER: Do not insert foreign objects into any part of Mega. Always use

5
genuine parts and accessories, purchased directly from POMCube or a
POMCube-certified party. Using parts and accessories other than the
provided one may cause short circuits or overheating, and result in electric
shock or fire.
DANGER: Any installation must comply with specifications for wire types,
conductor sizes, electrical and thermal insulation, branch circuit protection,
grounding, and disconnect devices.
DANGER: Keep Mega away from children.
CAUTION: Do not paint any part of Mega, including any internal or external
components such as the exterior shell or casing.
CAUTION: When installing Mega in a garage or near vehicles, keep it out of
the driving path. It shall be standing on the floor.
Installation Conditions
(1) Environmental Conditions
DANGER: Do not expose Mega or its components to direct flame.
DANGER: Do not install Mega near heating equipment. Do not expose
Mega to direct sunlight.
DANGER: Do not immerse Mega or its components in water or other fluids.
Install Mega in a location that prevents damage from flooding.
DANGER: Do not expose Mega to ambient temperatures above 60°C
(140°F) or below -30°C (-22°F). In temperatures below 0°C (32°F), use an
air heater to warm up the battery cabinet before booting the system. A
thermal cover is recommended for the battery cabinet in temperatures
below 0°C (32°F).
CAUTION: Do not use cleaning solvents to clean Mega, or expose Mega to
flammable or harsh chemicals or vapors.
CAUTION: Do not place Mega in a storage condition for more than one (1)
month, or permit the electrical feed on the Mega to be severed for more
than one (1) month, without placing Mega into a storage condition in
accordance with POMCube’s storage specifications.

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CAUTION: Ensure that no water sources are above or near Mega, including
downspouts, sprinklers, or faucets.
CAUTION: Ensure that snow does not accumulate around Mega.
(2) The foundation of the installation site shall be horizontal.
(3) Reserve enough space for maintenance and pay attention to the
maintenance space requirement for each side.

7
Maintenance Space
(4) Ensure enough clearance around the unit is available per local and national
electric code.
Cleaning and Maintenance

8
DANGER: Switch off all external and internal breakers, then wait for 5
minutes before making any repairs or maintenances.
DANGER: It is recommended that you clean the device by blowing it with a
blower, or wiping it gently using a soft and dry cloth or brush. Do not use
water, chemical substances, or detergents. These may cause discoloration
or corrosion to the product's exterior, and may cause a fire or electric
shock.
DANGER: Mega and its components are not user serviceable. Do not
dismantle the device. Do not attempt to repair the device or its
accessories by yourself, as damage or personal injury may occur. Damage
caused by unauthorized repair is not under the warranty. Please contact
your local distributor for any possible problems with the product.
DANGER: Do not damage any of the cable. Do not place it near any hot
objects, bend it excessively, twist it, pull it, or wrap it into a bundle.
DANGER: Batteries in Mega are replaceable. Contact POMCube or an
authorized dealer for any repairs or replacements.
Emergency Situations
(1) Leaking Batteries
DANGER: If the battery pack leaks electrolyte, avoid contact with the
leaking liquid or gas. If one is exposed to the leaked substance,
immediately perform the actions described below.
Inhalation
DANGER: Evacuate the contaminated area, and seek medical attention.
Contact with eyes
DANGER: Rinse eyes with flowing water for 15 minutes, and seek medical
attention.
Contact with skin
DANGER: Wash the affected area thoroughly with soap and water, and
seek medical attention.
Ingestion

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DANGER: Induce vomiting, and seek medical attention.
(2) Damaged Batteries
DANGER: Damaged batteries are dangerous and must be handled with the
utmost care. They are not fit for use and may pose a danger to people or
property. If the battery pack seems to be damaged, pack it in its original
container, and then return it immediately to POMCube or an authorized
dealer.
(3) Fire
DANGER: DO NOT UNDER ANY CIRCUMSTANCES USE WATER! Only dry
powder fire extinguisher can be used; call 911 or other emergency services,
immediately.
(4) Wet Batteries
DANGER: If the battery pack is subjected to water or submerged, contact
POMCube or an authorized dealer for technical support. Do not allow
personnel to access the unit.
NOTE: Damaged batteries may leak electrolyte or produce flammable gas. If
such damage occurs, please contact POMCube immediately.

10
About Mega
Overview
Mega is a versatile battery storage system to power your home or business,
24/7 in emergencies like blackouts, relieve you from heavy electricity bills, and
even help you to be energy self-sufficient.
Parts and Features
NOTE: The images shown in this User Manual are for reference only and may
slightly differ from the actual product.
(1) Rechargeable lithium (LiFePO4) battery system

11
Battery System
No.
Parts
Functions
1
Rack System
Mechanical support. Including the Air Deflector,
Cable Bracket and Cover Plate
2
EMS Module
Manage the whole system
3
BCMS Module
Manage and protect all battery modules
4
Battery Module
Store electric energy
1
2
3
4

12
EMS Module Front View
Parts
Functions
NETWORK
RJ45 port, connect to the router/Internet
USB
USB drive upgrade
RESET
Wi-Fi reset button. Long press this button for 4 seconds to
reset Wi-Fi settings
SD
SD card for storage of operation data
STATUS
Indicate the device status and the network status:
Solid red: System startup in progress
Blinking red: Ready for network connection
Blinking green: Wi-Fi network and password detected;
connecting to router. If it blinks for over 3minutes, either
the network or the password might be incorrect
Solid white: Connecting to the Internet or troubles in
Internet connection while the router connection works
properly
Solid green: Internet connected successfully
Dry Contact
NC1&NC2: Start/Stop generator
Others: Reserved
MPPT
Communicate with solar controller
RS232
For the manufacturer’s debugging
PCS
Communicate with PCS
RS485-2
Reserved, RJ45 port, follow RS485 protocol
RS485-1
For the manufacturer’s debugging
BCMS
Communicate with BCMS module
Status

13
DC 12V
DC12V power supply input
BCMS Module Front View
Parts
Functions
BAT INPUT
Connect to battery
BAT OUTPUT
Connect to PCS
POWER
Power switch.
START
Manually start battery system
RS232
For the manufacturer’s debugging.
RS485-2
Reserved, RJ45 port, follow RS485 protocol.
RESET
Reset BCMS module
RS485-1
Communicate with other BCMS module
EMS
Communicate with EMS module
ADD
Reserved
Dry Contact
Reserved
LINK PORT
Communicate with Battery Module
DC 12V
DC12V power supply input/output
Fuse Cover Plate
Fuse replacement
LED Display
Status
BIT NO.1
BIT NO.2-NO.3
Charge
Green “C”
SOC “0-99”
BAT INPUT
BAT OUTPUT
Power switch
Fuse Cover
Plate
LED Display

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Discharge
Green “D”
SOC “0-99”
Standby
Light off
SOC “0-99”
Alarm
Red ”A”
Fault Code*
Protection
Red ”E”
Fault Code*
NOTE: 100% SOC will also be displayed as 99.
Fault Code*: Refer to the detailed fault codes attached.
Battery Module Front View
Parts
Functions
B-
Battery module positive (-).
B+
Battery module negative (+).
STATUS
Indicate battery module status:
Blinking yellow: Boot up in progress

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Blinking blue: Self-inspecting
Solid green: Working normally
Solid pink: Alarming
Solid red: In device protection or troubles
RS232
For the manufacturer’s debugging
LINK PORT0
Communicate with battery module
LINK PORT1
Communicate with battery or BCMS module
Specifications
Lithium Iron Battery System
Electrical
Model
PBT-LI409100S2 / PBT-LI512100S2
Rated Energy
39.9 /49.9kWh
Usable Energy
36.9/46.2kWh @ 50A
Nominal Voltage
409.6 / 512 Vdc
Nominal Capacity
97.5Ah
Charge Voltage
448 / 560 Vdc
Operating Voltage
Range
384 ~ 467.2 / 480 ~ 584 Vdc
Continuous Power
20.5 / 25.6 kW
Peak Power
39.9/49.9kW @ 1s
Protection
Over/Under
Temperature
Yes
Over/Under Voltage
Yes
Over Current
Yes
Short Circuit
Yes
General
Dimensions (W * H * D)
21.7 in * 63.4 in * 24.2 in
System Weight
903.9 / 1091.3 lbs.
Battery Module Weight
42.8kg
Communication
Interface
Ethernet, 4G, Wi-Fi, CAN

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Display
LED Light and Display
Operating Temperature
Range
32℉~ 113℉(0 ℃~ 45℃)
Recommended
Operating Temperature
Range
50℉~ 95℉(10 ℃~ 35℃)
Relative Humidity
0 ~ 95% (No Condensation)
Protection Rating
NEMA 2 (IP20)
Altitude
≤ 9842ft (3000m)
NOTE: Weight of each device may vary slightly.

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Installation
Tools and Safety Gear
NOTE: Proper tools and safety gears are recommended for installation.
Items
Specification
Notes
Rotary hammer drill
Drill φ 10.0
This is only required if a concrete
wall is present.
Rotary hammer drill
Drill φ 12.0
Drilling on the ground.
Phillips screwdriver
φ 6mm
Tighten ground screw and keep
ground wire in place.
Flat head
screwdriver
φ 3mm
Plug/unplug wires of quick
connectors.
Rubber hammer
-
Load expansion bolts.
Cable Cutter
-
Cut and strip wires for installation.
Measuring Tape
-
Measure distance.
Leveling instrument
-
Keep the product positioned,
horizontally.
Vacuum cleaner
-
Clean dirt caused from drilling.
Insulated Gloves
-
Safety gear
Safety Goggles
-
Safety gear
Safety Shoes
-
Safety gear
Dust mask
-
Safety gear
Multimeter
-
Test grounding and wiring.
Marker
φ ≤8mm
-
Socket wrench