Product Overview
Description
72V 140AH lifepo4 battery pack for r c boat,yatch, pure car,auto.electric sightseeing bus,e-bus,e-car,motorcycle and so on.
Specification
1)Rated of voltage 72V
2)Rated of capcaity 140AH
3)Max charge voltage 87.6V
4)Cut of voltage 60V
5)Charge method CC&CV
LiFePO4 battery structure
Protection in 7 aspects
Against vibration,water ingress,high temperature,low temperature,dust ingress,creepage ,short circuit
3 features
Light in weight,small in dimesion,attractive in visual appearance
1)Long cycle life (2000 cycles) is several times greater than Ni-MH, Ni-Cd or SLA.
2) Non-Toxic, environmentally-friendly product.
3) High safety
LiFePO4 is an intrinsically safer cathode material than Lithium-ion since exothermic reactions can not occur in batteries based on this material
LiFePO4 cells do not incinerate or explode under extreme conditions
4) Good performance in high-current discharge cycles.
5)offter full solution of battery+BMS +charger,which can protect from overcharge ,overdischarge,overheat
72V 140AH battery need 2 voltage modules.One BMS include voltage module+current module+current sensor+Host+display+wiring harness
BMS function
1)state of charge(SOC)
2)Voltage of the pack
3)Voltage of the lowest and highest cell
4)Temperature of each box
5)Max charge current
6)Max discharge curretn
7)State of health(HOS)
8)Voltage of individual cells
9)Resistance of the pack and individual of cells
BMS advantages
Lossless shift balancing
SOC with high accuracy
Anti-jamming
Wireless data transmission
Automobile grade interface
Convenient installtation and maintenance
Heat management
Inspecition of capacity of cell

ABOUT US
CBL(Czwbattery) is Customized in lithium-ion batteries, polymer batteries, fast charge solutions, power solutions development, production and sales as high-tech enterprises. Owns: Shenzhen CZWBattery Technolgoy co,Limited., Hongkong CZW Technology Co., Ltd. CZWBattery Technology Co,Limited the company a total area of 80,00 square meters, producing more than 300 employees in Shenzhen and Zhejiang have production plants, with world-class R & D team, industry leading technology research and development personnel and advanced production equipment. It has many domestic and foreign patents. With continuous innovation capability, excellent lithium-ion battery module development and design capability, excellent cost control and reasonable business location and high-quality customer resources, the company has become the design of lithium energy sector the strongest, most complete supporting capacity , the largest product line of lithium-ion battery pack manufacturer.
Package

FAQ
1,Q: What's the main product in CZW?
A: Rechargeable battery. Li-ion, Lipo battery and power battery pack for EV , HEV, E-bike, UPS , EPS and backup etc..
2,Q: What is overcharge?
A: After charge, tested the batteries' initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01C at CV mode. Observe changes in battery appearance.
3,Q: What is over discharge?
A: After charge, test the batteries' initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance
4. Q: Can I have a sample order?
A: Yes, we accept sample order to test and check quality. Batteries can be made as require.
5. Q: Do you have MOQ limit?
A: Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.
6. Q: How about the lead time?
A: Samples will takes 5-7 business days. Mass production will takes 25-30 days. It depends on quantity.
7. Q: How about shipping and delivery time?
A: Generally, battery will be shipped via Express, such as DHL, TNT, FedEx and UPS, delivery time is 3-5 business days. Or DDP service, delivery time is 11-15 business days. Airline and sea shipping also available.
8. Q: What about after-sale service?
A: We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.
Welcome to contact us for samples testing Orders