E-mail:  sales6@lithiumbattery-rj.com   |    Tel:  0086-13430203848


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72V 40Ah Lithium LiFePO4 Battery For EV Golf Cart Forklift Motorcycles

72V 40Ah LiFePO4 Battery With BMS 6000Cycles 5Years Warranty Looking for distributors
  • RJ-LFP-7240-E

  • RJ

  • RJ-LFP-7240-E


Lithium batteries have the advantages of light weight and low maintenance, making them the preferred choice for power supply for low speed electric vehicles. Since the lithium battery can provide the same voltage as the lead-acid battery, the user does not need to modify the electric golf cart or the E-forklift E-boat.

Lithium iron phosphate batteries have become a new trend in industrial batteries. Compared with traditional lead-acid batteries, lithium batteries have a large qualitative change and are a more environmentally friendly energy solution.  

Although the initial battery replacement cost is slightly higher, the advantages of lithium batteries will save users more money during later use.



Norminal Power(KWh) 3072Wh
Norninal Capacity(Ah) 40Ah
Norninal Voltage(V) 72V
Type LiFePO4 Battery
Dimensions (mm) Customized
Weight(Kg) 30Kg
Discharging Voltage(V) 57.5~83.9V
Discharging Voltage(V) 57.5~83.9V
Charging 15A
Discharging Current (A) 40A
Working Temperature(℃) 0~55℃
Shelf Temperature(℃) -20~70℃
Humidity 0-95% RH(Non-condensing)
IP Grade (IP) 0-95% RH(Non-condensing)
Altitude ≤3000m
Authentication Level TuV/CE/UN38.3
Design Life(year) 20+ years (@25℃/77℉)
Cycle Life (cycle) >6000Times 





•          More than 6000 Cycles

•          Battery modules available for parallel and series for higher voltage and capacity

•          BMS Passive cell balance funciton

•          IP66, IP67, water proof, dust proof, Temperature monitoring

•          Customization for Size and Discharge and charge rate

•          Free of Maintenance, contains no poisonous material

•          No leakage, no hazardous chemistry

•          Quick delivery

•          Lighter in weight, smaller in size to save space.

•          Powerfull to increase robust operation for your marine boat or RV

•          Fast charging and high power discharge rate available

•          No need to add water nor worry about maintenance.

•          We offer 5years regular warranty and it can be extended up to 10 years.




Content Criterion
Over charge


Over charge detection voltage 3.6~4.25V
Over charge detection delay time 0.1 S ~ 6S
Over charge release voltage 3.5~4.25V
Over discharge protection

Over discharge detection voltage


Over discharge detection delay time 0.1 S ~ 6S
Over discharge release voltage 2.1~3.4V
Over current protection
Charge Over current detection current 1~100A
Charge Over current detection delay time 0.02S~ 6S


Over current


Discharge Over current detection current 1~600A

Discharge Over current detection delay time


0.02S~ 6S



Short protection detection delay time 100 u S
Detection condition B+ P-0.2 Omh
restore Cut off load
Interior Resistance Main loop electrify resistance 2 OMh(50A)
Currentconsumption Current consume in normal operation 1.5mA Type
Currentconsumption Current consume in sleep operation 2 uA Type

Note BMS is customizable. More advanced functions available, such as bluetooth, RS485, CAN, Automaticaly Heating functions, High temperature shut off, Low temperature shut off, BMS protocol available etc. Contact us for more details!

With powerful capacity of Lithium Battery production, RJ is able to provide 1 to 1 customization service. No matter you only buy 1 pcs battery for your own use, or you are a company looking for bulk order of LiFePO4 Battery Pack, RJ will always meet your full satisfactions!




LIFEPO4 Dimensions Weight with BMS RS485/Bluetooth Cycles Warranty
72V 10AH 195*165*175mm 13kg Yes Available 6000times 5years
72V 20AH 330*175*220mm 20kg Yes Available 6000times 5years
72V 30AH 485*175*240mm 32kg Yes Available 6000times 5years
72V 40AH 525*240*215mm 43kg Yes Available 6000times 5years
72V 50AH 505*273*225mm 48kg Yes Available 6000times 5years
72V 60AH 350*540*160mm 50kg Yes Available 6000times 5years
72V 70AH 350*540*160mm 58kg Yes Available 6000times 5years
72V 100AH 600*200*300mm 50kg Yes Available 6000times 5years
72V 200AH 179*1448*282mm*2pcs 220kg Yes Available 6000times 5years
72V 300AH 800*400*300mm*2pcs 260kg Yes Available 6000times 5years





customer reviews





why RJ

1. Our company is a high-tech enterprise with 10 years’ experience in R&D battery.

2. With a total span of 20000 square meters, our monthly production capacity can exceed 6,000,000 Ah in our factories.

3. Flexible customizing and manufacturing accepted.

4. We promise providing high quality products with our professional R&D team, accomplished and experienced workers and advanced equipment.

5. Strict management and control for every progress in producing and 100% QC inspection before shipment.

6. We provide service of sample and prompt shipment, and sending someone to follow up the logistics progress after delivery.

7. 10 years warranty. Professional after-sales service, give instruction on how to use the products.



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