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12.8V 100Ah LiFePO4 Rechargeable Lithium Battery

The RT12100G31 is the most adaptable 12V lithium battery solution on the market featuring advanced Lithium Iron Phosphate (LiFePO4) technology and embedded BMS (Battery Management System), designed for seamless system integration. It is a prefect replacement to the lead acid based batteries in the applications such as marine, RV, golf carts and solar storage.



Connects multiple batteries in parallel safely without internal state non-uniformity issues.


The battery management system (BMS) provides comprehensive protection to the battery and manages the charging/ discharging process wisely.

Uncompromised Quality

State-of-the-art battery cells ensure a lifespan of more than 6000 cycles, 100A continuous discharge current, and a wide range of operation temperature.


CAN, RS485, Bluetooth, Dry Contact enable data transmission to meet the needs of different usage scenarios.


1. State of Charge relay
2. Comms In/Out
3. On/Off button
4. Carry handle
5. Vent
6. 2 x Link ports






  • Scalable & expandable design: up to 1S/1-16P 12V 100Ah to 1600Ah, 2S/1-8P 24V 100Ah to 800Ah and 4S/1-4P 48V 100Ah to 400Ah.
  • IP67 protection rating suitable for marine use or can be externally mounted in RV applications.
  • Bluetooth monitoring of state of charge and usage information.
  • Advanced communications capability for easy system integration.
  • 200A peak max. discharge each (30 seconds). Capable of powering 2000W power inverters!
  • Advanced BMS featuring auto-balancing function and advanced safety protocols to keep you safe and extend service life.
  • Industry standard G31 size to suit most battery boxes and/or mountings.



  • Product Code: RT12100G31


  • Nominal Voltage(V): 12.8
  • Nominal Capacity(Ah): 100
  • Working Voltage Range(VDC): 10.8~14.4
  • Internal Resistance(mΩ): <20
  • Charge Voltage(VDC): 14V-14.4
  • Nominal Operation Current(A): 20
  • Max. continuous operation current(A): 100
  • Peak Current(A): 200A@30sec
  • Serial Connection: Up to 4 in series (4S4P Max.)
  • Parallel Connection: Up to 16 in Parallel (1S16P, 2S8P, 4S4P Max.)


  • Dimension (mm): 325 x 173.5 x 226
  • Weight(Kg): 13kg ± 0.2
  • IP rating: IP67
  • Power Terminal: M8 bolt

Working Environment:

  • Charge working temperature (°C): 0~60
  • Discharge working temperature (°C): -20~60
  • Working temperature (°C): -40~60*
  • Altitude (M): <4,000
  • Humidity(RH): 5~95 % ( w/o condensing)


  • RS485: 115200 bps
  • CAN: 500 Kbps
  • Bluetooth: BLE5.0
  • Dry contactor: 2x inputs & 2x outputs


  • SAE J930, SAE J1455, UL1973, IEC62619, FCC, CE, Bluetooth SIG, UN38.3

* During -40°C ~ -20°C, only heater will be enabled for heating up the module, battery cannot charge/discharge during such period.