72V 50Ah 21700 lithium ion battery (20S11P 72V 50Ah)
Lithium ion (also known as ‘LIB’ or ‘LTB’) batteries are thin, light and powerful. This 72V Lithium battery output ranges from 84V when completely charged down to 55V(standard).
All of our Lithium batteries come with or without pre-attached with popular connector like JST,XH,SH, as well as necessary protection circuit, NTC or balancing cable are also available.
Cell Type: Lithium Polymer Battery
Voltage(V): 72V
Nominal Capacity(mAh): 50Ah
Standard Charge Current: 0.2C
Standard Discharging Current: 0.2C
Max Discharge Current: 1C (not continuous)
Charge Temperature(℃): 0～55℃
Discharge Temperature(℃): -20～65 ℃
Storage Temperature(℃): -20～45 ℃
Impedance: ＜40mΩ
Weight: 15kg
Lifetime: 500 cycles
Battery Dimension: 150*111*530mm (By Thickness*Width*Length):
Cable Length (Default): 200mm
(Notes: Battery with PCM will generally 2mm longer than Just bare cell)
Standard battery comes with PCM and wire, Bare cell can also be provided.
PCM Details:
Standarded PCM: protect the Lithium battery from overcharging, over-discharging,short-circuit and reverse polarity.
Over Charge Protection
Over charge detection voltage: 8.5±0.05V
Over charge detection delay time: 1.0±0.3S
Over charge release voltage: 8.05±0.05V
Over discharge protection
Over discharge detection voltage:5±0.1V
Over discharge detection delay time:20±6.0mS
Over discharge release voltage:6.0±0.075V
Over current protection
Over current detection voltage: 4±0.015V
Over current detection current: 4.0～6.0A
Detection delay time: 12±4.0mS
Release condition: Cut load
Short Circuit Protection
Detection condition: Exterior short circuit
Detection delay time: 230～500uS
Release condition: Cut short circuit
Interior resistance
Main loop electrify resistance: VC=8.4V；RSS≤70mΩ
Current Consumption
Current consume in normal operation: 4.0μA Type 8.0μA Max
Connector Types:
JST, Molex, Hirose etc
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Datasheet
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FAQ
Q: How do we place an sample order?
A: Please kindly send us your battery requirement
1 battery discharging current
2 battery capacity
3 battery dimension
4 potential bulk order quantity
and we will find the most suitable solution for you, you can then pay us by PayPal or Credit card.
Q: What is your MOQ?
A: 50 PCS per Model.
Q: What’s the delivery time?
A: The delivery time is 7-15 days after your payment.
Below is timeline for your refrencer
USA: 5-8 days
EU/UK: 7-10 days
AU/New Zealand: 5-8 days
Canada: 15days
Japan/Korea/Singapore/Malaysia: 3-4 days
Q: How would the batteries be shipped?
A: We ship via UPS, DHL, FedEx for urgent orders, and most of our clients would choose to ship by air and local Fedex or UPS to save cost .
Q: Can I track my shipment?
A: Yes, we will send you the tracking No. after your batteries shipped.
Q: Can you make customized Lithium battery?
A: Yes, we can custom Lithium battery as per your design. Mainly like follows
1 Custom battery dimension
2 Custom battery capacity
3 Custom battery discharging current(up to 150C)
4 Custom battery PCM, like NTC or other features
5 Custom battery discharging temerature as lower as -60°C
6 Custom battery shape, like Curved Lithium Battery, Round Lithium Battery,Polygonal Lithium Battery, Triangle Lithium Battery.
Q: What is the lead time for mass production?
A: It depends on the actual situation: if with stock, the lead time will be 7~10 days.
If without stock, that will depend on your order quantity, usually within 15-30 days.
Q: Is there any warranty or after-sales service?
A: 15 months warranty against defective Lithium batteries,starting from shipping date.
Q: Can you explain more on how would you warranty your Lithium Battery?
A: For each shipment, we have SN or production number with it, once defective within 15 months, we will send new replacement or refund for the defective part.
Q: How do we make the payment?
A: We accept T/T, Western Union, PayPal, if you prefer other payment, please contact us.
Q: Can we get some Lithium Battery samples for test?
A: Sure, Lithium Battery Samples are always available for you, but the sample cost and freight cost should be paid.
Q: Can your factory print our logo/brand on the product?
A: Yes, and we will do this free of charge.
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