Shenzhen XUWEN Technology Co.,Ltd
Factory of lithium-ion battery packs, lithium battery protection management systems, lithium battery testing equipment.
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Customized 48V 20ah Li-Ion Lithium Ion Battery Packs For 1000W Electric Bike/Scooter
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Basic Information | Dimension( thickness*width*length) | 7.8*66*126(mm) |
| Charge voltage | 4.2V | |
| Nominal voltage | 3.7V | |
| Nominal capacity | 20000mAh | |
| Fully charge voltage | 4.2v | |
| Ship out volatge | 3.85-4.1v |
| Battery specification | Charge current | Standard Charging:0.5C (10000mA) |
| Rapid charge:1.0C(20000mA) | ||
| Charging method | Charge with constant current 0.5c to 4.2V, then chagre with constant voltage 4.2v till until charge current is less than 0.01C | |
| Standard discharge current | 0.2C(4000mA) | |
| Max.discharge current | 1C(20000mA) | |
| Discharge cut-off voltage | 3.0v | |
| Operating enviroment | Charging:10℃~45℃ | |
| Discharging:-10℃~60℃ | ||
| Storage temperature | -10℃~45℃ | |
| Cell Weight | Approx: 400g | |
| Battery recyle time | 500 times | |
| Warranty | 12 months |
FAQ
1,Q: What's the main product in XUWEN?
A: Rechargeable battery: Li-ion, Lipo battery and power battery pack.
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.