Lishen 21700 4000mah 5c Li-ion Rechargeable Battery Electronics Home Appliances submarine drone 21700 Cell
| Size |
21*70mm |
| Rated Voltage |
3.7V |
| Rated Capacity35 |
4000mAh |
| Internal Resitance |
12mΩ |
| Net Weight |
70g |
| Cut-off Discharge Voltage |
2.75V |
| Charge Upper Limit Voltage |
4.20±0.05V |
| Charging Time |
1.5 hours(with Efest battery charger) |
| Max Discharging Current |
30A |
| Continuous Discharging Current |
15A |
| Cycle Life |
>500s |
| Standard charger |
cc/cv(max ,charging rate 2A) |
| Warranty |
1 years |
| Operating Temperature |
charge (0 ~ 45°C) |
| discharge (-20 ~ 60°C) |
| Storage Temperature |
within 1 month (-20~ 50°C) |
| within 3 months (-20~ 40°C) |
within 3 months (-20~ 20°C)
|
Packing & Shipping
Delivery detail:
· Within 2-3 days after receiving payment(based on actual quantity)
· Tracking NO. will be sent to you after delivery, and we will track the goods for you until you receive all of them.
· DHL/FedEx/UPS: 3-5 workdays
· Air Shipping: 5-7 workdays
· Sea Shipping: 20-28 days
FAQ
Q1 What's the main product in APOWER?
Rechargeable battery, Li-ion battery, battery pack, battery cahrger and Iwalkie.
Q2 What is overcharge?
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.
Q3 What is over discharge?
After charge, test the batteries' initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance
Q4 Can I have a sample order?
Yes, we accept sample order to test and check quality. Batteries can be made as require.
Q5 Do you have MOQ limit?
Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.
Q6 How about the lead time?
Samples will takes 5-7 business days. Mass production will takes 25-30 days. It depends on quantity.
Q7 How about shipping and delivery time?
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.
Q8 What about after-sale service?
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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