Renogy RBT100LFP12SH User manual

12V 100Ah
Version 1.0
BATTERY
SMART LITHIUM IRON PHOSPHATE
W/ SELF-HEATING FUNCTION

01
Important Safety Instructions
Please save these instructions.
This manual contains important installation, operation, and maintenance instructions for the
Smart Lithium Iron Phosphate Battery. Please observe these instructions and keep them
located near the battery for further reference. The following symbols are used throughout
the manual to indicate potentially dangerous conditions or important safety information.
Indicates a potentially dangerous condition. Use extreme caution when
performing this task.
Indicates a critical procedure for the safe and proper installation and
operation of the battery.
Indicates a procedure or function that is important to the safe and proper
installation and operation of the battery.
Force majeure including fire, typhoon, flood, earthquake, war, and terrorism.
Intentional or accidental misuse, abuse, neglect or improper maintenance, and use under
abnormal conditions.
Improper installation, improper operation, and malfunction of a peripheral device.
Contamination with hazardous substances, diseases, vermin, or radiation.
Alterations to the product without express written consent from the manufacturer.
Please keep the battery away from water, heat sources, sparks, and hazardous chemicals.
DO NOT puncture, drop, crush, burn, penetrate, shake, or strike the battery.
DO NOT open, dismantle, or modify the battery.
DO NOT touch any terminals or connectors.
DO NOT touch the exposed electrolyte or powder if the battery casing is damaged.
Uncovered electrolyte or powder that has contacted the skin or eyes MUST be flushed out
with plenty of clean water immediately. Seek medical attention afterwards.
The manufacturer accepts no liability for any damage caused by:
Disclaimer
General Safety Information

02
Please make sure any battery charger or charge controller has been disconnected before
working on the battery.
DO NOT connect or disconnect terminals from the battery without first disconnecting loads.
DO NOT place tools on top of the battery.
Please keep the battery out of the reach of young children.
Please wear proper protective equipment when working on the battery.
Please use insulated tools when working on battery.
DO NOT wear jewelry or other metal objects when working on or around the battery.
Please ensure adequate and secure mounting of the battery.
Please use suitable handling equipment for safe transportation of the battery.
DO NOT dispose of the battery as household waste. Please use recycling channels in
accordance with local, state, and federal regulations.

03
Table of Contents
General Information
Key Features
Product Overview
Identification of Parts
Additional Components
Preparation
Battery Installation
Inspection
Cable Sizing
Connecting Batteries in Banks
Securing Cable Connections
Installation Environment
Battery Storage
Battery Maintenance
04
04
05
05
06
05
06
06
07
Troubleshooting 17
Specifications 18
07
08
09
09
10
13
14
Battery Management System 15
Dimensions
Battery Operation

04
General Information
The Renogy Smart Lithium Iron Phosphate Battery enables the auto-balancing among parallel
connections and provides more flexibility for the battery bank configuration. The integrated
battery management system (BMS) not only protects the battery from various abnormal
conditions but monitors and manages the charging and discharging process. The state-of-the-art
battery cells ensures an extended cycle life and exceptional discharge performance. With built-in
intelligent self-heating, the battery is rechargeable even in low-temperature conditions.
Key Features
Auto-Balance
Connects multiple batteries in parallel safely with the auto-balancing function to meet the
power and energy requirements of different system setups.
Ultra-Safety
The battery management system (BMS) provides comprehensive protection to the battery
and manages the charging and discharging process.
Uncompromised Quality
The state-of-the-art battery cells ensure an exceptional lifespan of more than 4000 cycles
(80% DOD), up to 100A continuous discharge current, and a wide range of operating
temperatures.
Communication Port
The communication ports enable the communication between connected batteries, external
devices, and host computers.
Self-Heating
The intelligent self-heating feature keeps the battery charged in cold environments.

05
Product Overview
Dimensions
Identification of Parts
Positive Terminal
Negative Terminal
RS485 UP Communication Port
RS485 LINK Communication Port
① ②③ ④
289mm
7.5in
190mm
11.4in
6.8in
172mm
7.4in
187.50mm
7.9in
199.40mm
①
②
③
④

06
Before the installation and operation of the battery, it is recommended to have the following
equipment or tools available:
Safe and reliable installation requires trained and certified technicians. Therefore, the purpose
of this section is only to serve as a guideline as all scenarios cannot be covered.
DO NOT short-circuit the battery terminals. Doing so can cause current bursts and lead to
irreversible damage to the system and the battery.
Preparation
Battery Installation
Additional Components
Activation Switch
The Activation Switch is used to switch the battery between active mode and shelf mode.
Long Terminal Bolts (2)
The Long Terminal Bolts (M8 x 1 x 20 mm) are used to secure multiple cable lugs on a
single battery terminal.
Proper Protective Equipment
Insulated Tool(s)
Multimeter
Battery Cable
Battery Charger / Charge Controller

07
Please verify the polarity before connecting the wiring. Reversing polarity can and will
destroy the battery.
Please use circuit breakers, fuses, or disconnects appropriately sized by a certified electri-
cian, licensed installers, or regional code authorities to protect all electrical equipment.
Please check for visible damage including cracks, dents, deformation, and other visible abnor-
malities. The top of the battery and terminal connections should be clean, free of dirt and
corrosion, and dry. If any problems are detected with the battery, please contact us for
assistance. Refer to the last page of the manual for contact information.
Inspection
Battery cables (sold separately) should be appropriately sized to handle the expected load.
Please refer to the following table for the ampacities of copper cables with different gauge
sizes.
Cable Sizing
Copper Cable Gauge Size (AWG/mm
2
)Ampacity (A)
14 (2.08)
12 (3.31)
10 (5.25)
8 (8.36)
6 (13.3)
4 (21.1)
2 (33.6)
1 (42.4)
1/0 (53.5)
2/0 (67.4)
4/0 (107)
20
25
35
50
65
85
115
130
150
175
230
The above values are from the NEC Table 310.15(B)16 for copper cables rated at 75°C
(167°F), operating at an ambient temperature of no more than 30°C (86°F). Lengths in excess
of 6 feet (1829 mm) may require heavier gauge cable to avoid excess voltage drop in under-
sized wiring.

08
To string multiple batteries in parallel, first
connect the Positive Terminals of the batteries to
each other. Then, connect the Negative Termi-
nals of the batteries to each other. Finally,
connect the Positive Terminal of the first battery
and the Negative Terminal of the last battery to
the system. This type of arrangement is used to
increase the overall battery capacity while
keeping the battery voltage the same.
To enable the communication between paralleled
batteries for the proper operation of the Renogy
Monitoring Screen or the Renogy Bluetooth
Module, connect the RS485 LINK Communica-
tion Ports of the former batteries to the RS485
UP Communication Ports of the latter ones using
CAT5 (or above) Ethernet straight through
cables (not included). The Renogy Monitoring
Screen or the Renogy Bluetooth Module should
be connected to the RS485 UP Communication
Port of the first battery.
Connecting Batteries in Banks
DO NOT string batteries in series. Doing so can cause catastrophic failure.
DO NOT string batteries with different chemistries, brands, models, rated capacities, or
nominal voltages in parallel.
Please avoid too high a voltage difference between paralleled batteries, despite the
auto-balancing function, to avoid triggering the over-current protection.
In parallel battery banks, the cables between each battery should be of equal length to
ensure that all batteries in the system can work equally together.
It is not recommended to connect more than 4 batteries in parallel if taking advantages of
the auto-balancing function.
Ethernet Straight
Through Cable
Copper
Cable

09
Installation Environment
To ensure good contact between the cable lugs and the terminals, please use the appropriate
number of washers to allow for as much thread engagement as possible without bottoming out
the terminal bolt. The correct number of washers can be determined by hand-tightening the
terminal bolt with just the cable lug in place and observing the gap that is present. Use the
number of washers needed so that the washer stack is slightly larger than the observed gap.
It is important to ensure that the cable lug and the top surface of the terminal are in contact. The
washer(s) must be placed on top of the lug. Do not place the washer(s) between the battery
terminal and the cable lug as this can cause high resistance and excessive heating.
The battery should be installed in a clean, cool, and dry place, keeping water, oil, and dirt
away from the battery. The accumulation of these materials on the battery can cause current
leakage, resulting in self-discharge and a possible short-circuit. Sufficient air flow must be
provided to prevent excessive heat build-up and to minimize temperature variation between
the batteries.
Securing Cable Connections
Please secure all cable connections to the proper specification in order to ensure good
contact between the cable lugs and the terminals. Over-tightening cable connections can
cause terminal breakage and loose cable connections can cause terminal meltdown or fire.
Please use an insulated Philips screwdriver to tighten the cable connections.
Please use the included Long Terminal Bolts when needed to secure multiple cable lugs on
a single battery terminal.

10
Battery Operation
The battery can be switched between active mode and shelf mode with the Activation Switch.
When the battery is in shelf mode, connect the Activation Switch to the RS485 UP Communica-
tion Port of the battery and press the Power Button. The dim blue LED light on the Power
Button will become bright blue to indicate that the battery has been successfully switched to
active mode. Please check the battery voltage to validate an active battery.
Prior to long periods of storage, disconnect the battery from the system, connect the Activation
Switch to the RS485 UP Communication Port of the battery, and long press the Power Button
for 3 seconds to switch the battery to shelf mode. The bright blue LED indicator will become dim
blue to indicate that the battery has been switched to shelf mode. In shelf mode, the battery has
a low self-discharge rate and can hold the charge for a longer period of time.
DO NOT over-charge or over-discharge the battery.
DO NOT discharge the battery at high temperatures above 140°F (60°C).
Activation Switch Operation
Power Button
Please leave the battery in shelf mode during installation. DO NOT switch the battery to
active mode until making sure that all the connections are correct and secure. Connecting
active batteries to the system may trigger the short circuit protection of the battery.

11
The battery leaves the factory in shelf mode. Please switch the battery to active mode by charging
it or using the Activation Switch after connecting the battery to the system for the first time.
Paralleled batteries can be switched to active mode simultaneously by charging them or
using the Activation Switch on any battery. To switch paralleled batteries to shelf mode
simultaneously, please enable the communication between paralleled batteries and use the
Activation Switch on the first battery. Otherwise, please disconnect paralleled batteries and
use the Activation Switch to switch each battery to shelf mode.
Self-heating Function
The normal operation of the self-heating function requires a stable charge current greater than 4A
for each battery in the parallel battery bank. The self-heating function will start operating automati-
cally once the battery and the battery temperature drops below 41°F (5°C) and stop operating
automatically once the battery temperature rises above 50°F (10°C).
The self-heating function will not be able to operate normally if a PWM charge controller or
a small current battery charger is used to charge the battery at low temperatures.
Charging Batteries
DO NOT exceed the maximum charge current to the battery.
ONLY charge the battery with a battery charger or charge controller that is compatible with
lithium iron phosphate batteries.
Depending on the length of time between manufacturing and shipping, the battery may be
received at a partial state of charge. Please fully charge the battery prior to the initial use.
During the standard charging process, the battery is first charged at a constant current of
20A until the battery voltage reaches 14.4V. Then, the battery is charged at a constant
voltage of 14.4V while tapering the charge current. The standard charging process is consid-
ered complete when the charge current is less than 2A. However, leaving the battery on float
will continue to balance the battery cells and will not damage the battery. The standard
charging process normally takes 7 hours. Safe charging requires battery temperatures
below 131°F (55°C). If the self-heating function is unable to work normally, battery tempera-
tures above 32°F (0°C) is also required for the safe charging.

12
Discharging Batteries
During the standard discharging process, the battery is discharged at a constant current of 20A
until the battery voltage reaches 10V. Safe discharging requires battery temperatures between
-4°F and 140°F (-20°C and 60°C).
DO NOT exceed the maximum discharge current to the battery.
DO NOT connect large loads to the battery when it is running low.
If the battery shuts off due to low state of charge (SoC), please disconnect the battery from
the discharge equipment to eliminate potential parasitic loads and charge the battery as
soon as possible. Failure to do so may cause irreversible damage to the battery.
It is recommended to pair the battery with discharge equipment featuring low voltage
disconnect in the system.

13
Checking Voltage
Please check the battery voltage periodically to assess battery health. If the battery resting
voltage is under 10V in active mode at room temperature, the battery may have been over-dis-
charged due to self-discharge or parasitic loads. Please stop using the battery until the fault
can be corrected and the battery can be charged.
Terminal corrosion may adversely affect the battery performance and present a safety
hazard. Please keep terminals free of corrosion.
Battery Maintenance
Inspection
Please perform regular inspections following these steps:
Examine the external appearance of the battery. The top of the battery and terminals should
be clean, dry, and free of corrosion.
Check battery cables and connections. Replace any damaged cables and tighten any loose
connections.
Cleaning
Please clean the battery at regular intervals following these steps:
Disconnect the battery from the charging source or electric load.
Switch the battery to shelf mode using the Activation Switch.
Clean the top of the battery and terminals with a damp cloth or non-metallic brush. A house-
hold cleaner may be used if the battery is extremely dirty.
Dry the battery with a clean cloth and keep the area around the battery clean and dry.
Ensure the battery is completely dry before switching it to active mode and/or reconnecting
it to the charging source or electric load.

14
Please follow these tips to ensure that the battery emerges from storage in a good condition:
Battery Storage
Charge the battery to 30%~50% and switch the battery to shelf mode using the Power
Button.
Disconnect the battery from the discharge equipment to eliminate any potential parasitic
loads that may discharge the battery.
Store the battery in an open, well ventilated, dry, clean area in temperature between
-13°F~149°F (-25°C~65°C).
Handle the battery carefully to avoid sharp impacts or extreme pressure on the battery
casing.
Charge the battery at least once every 3~6 months to prevent over-discharge.
When the battery is taken out of storage, it should be given a full charge prior to use.
DO NOT expose the battery to the extreme temperatures over 149°F (65°C).
DO NOT expose the battery to heat sources.
DO NOT expose the battery to direct sunlight, moisture, or precipitation.

Warning and Protection
Battery Management System
The battery contains a battery management system (BMS) that warns you and protects the
battery from over-voltage, under-voltage, over-current, short circuit, high temperature, and low
temperature. Please refer to the following table for the triggering and recovery condition of each
warning and protection.
Battery Over-voltage
Battery Cell
Over-voltage
Battery Cell
Under-voltage
Battery High
Temperature
(Charging)
Battery Low
Temperature
(Charging)
Battery High
Temperature
(Discharging)
Battery Under-voltage
Battery Voltage≥14.8V
Battery Voltage≤13.8V /
Discharge Current≥1A
Battery Cell Voltage≥3.7V
Battery Cell Voltage≤3.45V /
Discharge Current≥1A
Battery Voltage≤12V
Battery Voltage≥12V
Battery Voltage≤10V
Battery Voltage≥12.4V /
Charge Current≥1A
Battery Cell Voltage≤3V
Battery Cell Voltage≥3.1V /
Charge Current≥1A
Battery Cell Voltage≤2.5V
Battery Cell Voltage≥3.1V /
Charge Current≥1A
Battery Temperature≥122°F (50°C)
Battery Temperature≤113°F (45°C)
Battery Temperature≥131°F (55°C)
Battery Temperature≤122°F (50°C)
Battery Temperature≥122°F (50°C)
Battery Temperature≤113°F (45°C)
Battery Temperature≥140°F (60°C)
Battery Temperature≤122°F (50°C)
Battery Temperature≤41°F (5°C)
Battery Temperature≥50°F (10°C)
Battery Temperature≤32°F (0°C)
Battery Temperature≥41°F (5°C)
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Protection
Protection
Warning
Protection
Warning
Protection
Warning
Protection
Warning
Protection
Warning
Protection
Battery Operation Status Condition
15

The warning status is only visible on the Renogy Monitoring Screen and the DC Home app.
The warning status will not affect the normal use of the battery. But it is recommended to pay
closer attention to the battery to prevent it from entering the protection mode.
Battery Cell Balancing
The battery employs bypass circuit to maintain the balance between each battery cell group.
Each battery cell group is connected with a bypass resistor and a switch in parallel. During the
charging process, if the highest-voltage battery cell group reaches the set balancing starting
voltage and the voltage difference between the highest-voltage and the lowest-voltage battery
cell group exceeds the set voltage difference, the switch connected to the highest-voltage battery
cell group will be closed to shunt the charge current around the highest-voltage battery cell group
through the bypass resistor until the voltage difference drops below the set value. To avoid
excessive energy loss, the battery cell balancing is only performed during the charging process.
Battery Low
Temperature
(Discharging)
Charge
Over-current
Discharge
Over-current
Short Circuit
16
Battery Temperature≤14°F (-10°C)
Battery Temperature≥23°F (-5°C)
Battery Temperature≤-4°F (-20°C)
Battery Temperature≥1.4°F (-17°C)
Charge Current≥60A
Charge Current≤55A
Charge Current≥100A
Charge Current≤55A
Charge Current≥120A
Charge Current≤55A
Discharge Current≥110A
Discharge Current≤105A
Discharge Current≥130A
Discharge Current≤105A
Discharge Current≥150A
Discharge Current≤105A
Discharge Current≥500A (Delay 300μs)
Remove Short Circuits /
Charge Current≥1A
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Triggering
Recovery
Warning
Protection
Warning
Primary
Protection
Secondary
Protection
Warning
Primary
Protection
Secondary
Protection
Warning

If any problems occur during the battery operation, please refer to the following instructions or
contact us for assistance:
If the Activation Switch is not able to switch the battery to active mode or the battery resting
voltage is under 10V in active mode at room temperature, the battery may have been
severely over-discharged due to self-discharge or parasitic loads. Please revive the battery
using a battery charger or charge controller with the lithium battery activation function.
If the battery terminal voltage shows 0V in active mode, the battery internal fuses may have
blown due to severe over-current. Please contact us for assistance.
If the battery voltage gets too low to reliably power electric loads or triggers the battery
under-voltage protection, please disconnect the battery from electric loads and charge the
battery as soon as possible.
If the battery temperature gets too high/low during the operation and triggers the battery
high/low temperature protection, please disconnect the battery from the charging source
and electric loads and cool down/warm up the battery to room temperature. The battery will
automatically recover from the battery high/low temperature protection.
If too high a current passes through the battery and triggers the charge/discharge over-cur-
rent protection, please disconnect the battery from the charging source/electric load
immediately. The battery will automatically recover from the charge/discharge over-current
protection.
If the battery is short circuited and triggers the short circuit protection, please remove the
short circuit immediately and charge the battery with a current greater than 1A to recover
the battery from the short circuit protection.
Troubleshooting
17

Specifications
General
Operating Parameters
LiFePO4
100Ah
12.8V
10V~14.8V
4000 Cycles (80% DOD)
500VDC, ≥10MΩ
11.4 x 6.8 x 7.4 inch /
289 x 172 x 188 mm
26.2 lb. / 11.9 kg
RJ45 (RS485 Protocol)
Parallel
M8 x 1 x 15 mm
62.0~70.8 inch·lb / 7~8 N·m
UN38.3, MSDS, CE, UL1642 (Battery Cell)
14.4V
50A
100A
77°F±9°F / 25°C±5°C
32°F~131°F / 0°C~55°C
-4°F~140°F / -20°C~60°C
-13°F~149°F / -25°C~65°C
5%-95%
≤4000m
Cell Type
Rated Capacity (0.2C)
Nominal Voltage
Voltage Range
Cycle Life (0.2C, 25℃)
Insulation Resistance
Dimension
Weight
Communication Port
Connection Method
Terminal Bolt Size
Recommended Terminal Torque
Certifications
Charge Voltage
Maximum Continuous Charge Current
Maximum Continuous Discharge Current
Standard Operating Temperature
Charge Temperature Range
Discharge Temperature Range
Storage Temperature Range
Relative Humidity
Altitude
18

Renogy reserves the right to change
the contents of this manual without notice.
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