48V 20Ah rechargeable li-ion battery pack for electric vehicle
48V 20Ah rechargeable li-ion battery pack for electric vehicle
48V 20Ah rechargeable li-ion battery pack for electric vehicle
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| GEB specializes in the development, production and sales of custom lithium batteries. if you have any questions, please feel free to contact us. |
Item | Parameters | ||
Nominal Voltage | 48V | ||
Nominal Capacity | 20±1Ah( at 0.2C discharge rate) | ||
Discharge | normal current | 1C | |
Max continuous current | 2C (≤5min) | ||
cut-off voltage | 36V | ||
Charge | normal charge current | 0.5C | |
Charge mode | CC/CV with professional charger | ||
cut-off voltage | 55±0.1V | ||
Inner Resistance |
Discharging Inner resistance | ≤ mΩ | |
Charge Temperature | 0℃~+45℃ | When the environment temperature is higher than 45℃,please pay attention to ventilation and heat rejection. | |
Discharge Temperature | -20℃~+60℃ | ||
Humidity Range | RH≤85% | ||
Protection Function | Over charge protection,Over discharge protection,Over current protection,Balanced function | ||
Shell Material | Aluminum alloy | ||
Weight | 6.5±0.1kg | ||
Dimension(L*W*H) | 150*80*365mm | ||
Cycle Life | Standard charge at 0.2C(A), rest 0.5~1 h,discharge at 0.2C to cut off voltage,rest 0.5~1h,repeat the above steps until 500 cycles.( capacity retention rate≥80%) | ||
Warnings:
Do not submerge the battery in the water.
Do not mix fresh batteries with used batteries.
Do not mix batteries with metal stuff together.
Do not insert batteries with the (+) and (-) reversed.
Do not use Efest batteries with defective E-cig mods.
Do not disassemble, dispose in fire, heat or short circuit.
Do not put the battery in a charger or equipment with wrong terminals connected.
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| GEB specializes in the development, production and sales of custom lithium batteries. if you have any questions, please feel free to contact us. |
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| GEB specializes in the development, production and sales of custom lithium batteries. if you have any questions, please feel free to contact us. |
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1,Q: What's the main product in GEB?
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.
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| GEB specializes in the development, production and sales of custom lithium batteries. if you have any questions, please feel free to contact us. |