Introduction

LW12140E (LiWATT 12.8V-140Ah) is a communication lithium battery based on innovative Li-ion technology. It has advanced features: a long lifespan, a wide range of charging voltage, fast charging etc.

Application

12.8V-140Ah--(LiFePO4)

LiWATT 12.8V 140Ah

Feature of LiFePO4 Battery

Functions of BMS

Curves of Batteries

Charge curves at different C-rates
Discharge curves at different C-rates

Technical Specification of Batery

SpecificationModelLW12140E
Electrical CharacteristicsNominal Voltage12.8V
Nominal Capacity140Ah
Energy1792Wh
Internal Resistance≤20mΩ (without BMS)
Cycle Life≥4000 cycles @85%DOD@25℃
Design Life12 years @25℃
Self-Discharge (30 days)≤5% @25℃
Efficiency of Charge≥98%
Efficiency of Discharge≥100% @ 0.2C & ≥96% @ 1C
ChargeCharge Voltage14.2~14.6V
Max. Charge Current100A
Charge Mode0.2C to 14.6V, then 14.6V charge current to 0.02C (CC/CV)
DischargeMax. Continuous Discharge Current100A
Discharge Cut-off Voltage9.5~10.5V
EnvironmentalCharge Temperature Range0℃~45℃
Discharge Temperature Range-10℃~55℃
Optimum Operation Temperature10℃~35℃
Storage Temperature-10℃~35℃, ≤85% Relative Humidity
Water Dust ResistanceIP65
Mechanical
CaseABS
TerminalM6
Dimensions(L*W*H) mm 330*172*215
Max. Weight16kg
Min. Gravimetric Specifc energy112Wh/kg
OthersCommunication portNot available
Parallel in maximum4 pcs
Series in maximumNot allowed