High Quality 3.7V 4000mAh 21700 Rechargeable Lithium Nmc Battery

Product Description

Lishen brand new A product 21700 lithium ion battery, can discharge high rate, suitable for electric vehicles, tools, flashlights, backup power, cars, bicycles, communications, energy storage, solar energy, etc.
 






BATTERY WARNING


Warning: Lithium ion batteries may explode or burn due to improper use. Using these batteries for purposes not intended by the manufacturer, including outside a battery pack and/or without a BMS, may cause severe injury and damage. We are not responsible for any injuries caused by lithium ion batteries - use at your own risk.

All rechargeable batteries have inherent risks under any circumstance. Use caution with working with li-ion batteries (lithium-ion), LiPo (lithium ion polymer), and any rechargeable cells (together "rechargeable batteries"), as they have dangerous charging characteristics and are known to explode or burn if mishandled. A purchaser
and user of rechargeable batteries should educate themselves on rechargeable batteries, especially as to charging, discharging, assembly, and storage. We are not responsible for any damage caused by the misuse or mishandling of rechargeable batteries.



Certifications



Packing & Shipping

The lithium battery is Dangerous Good for shipment by Sea and By air and they should be shipped under the regulation of UN3480. All EVL
Batteries are packaged by DG plywood case and we provide UN38.3 test reports and MSDS. Please check shipping cost before place
Order: The lithium battery is Dangerous Good, the shipping cost is very different, so please check shipping cost before placing order. 





Company Introduction



EVL Battery Limited is a leading NCM Lithium Battery manufacturer from China and its public company in the Hongkong Stock Exchange
market. There are 4 factories in Fujian and Guangdong. The production capacity of 4 factories is as much as 20 GWh per year. EVL Battery
Limited is the number one Lithium Battery manufacturer from China.
Our Services & Strength
We provide high-quality EVL Battery to clients all over the world and help clients deliver batteries from China to them by sea and by air at a
reasonable price. And we provide the necessary technical support and warranty to you!

FAQ

Q: What is the life expectancy of a Lithium battery?
A: The typical estimated life of the Lithium Iron Phosphate (LiFePO4) battery is 5-15 years or 2000 to 8000 charge cycles. One charge cycle
is a period of use from fully charged, to fully discharged, and fully recharged again.

Q: If I want to solar charge LiFePO4/Lithium Ion battery, which already has PCB, would a normal SLA controller work fine?
A: For LiFePO4 / Lithium-Ion battery, we always recommend using the LiFePO4/Lithium-Ion solar controller. Especially if you are using the battery
UPS (backup power supply). The Lead-Acid solar controller will constantly provide pulse current to the battery, in the long run, it might
damage the PCB. So the PCB won't be able to protect the battery when it should be.

Q: I am a distributor. Can I cooperate with the battery warehouse for a long time?
A: Yes, Individual pricing for large scale projects and wholesale demand is available

Q: Why hasn't my ups or FedEx transportation number been updated ?
A: This is normal, in countries with tariffs, our packages need to pass the customs of your country before they can be delivered to the local
UPS or FedEx. Once they pass the customs and update the transportation number, you can usually receive the goods within 3-5 days.

Q: Are the cells I bought balanced?
A:  We know the importance of maintaining the consistency of each cell in the battery pack, so we will match and balance all cells to ensure that the
Internal resistance, voltage, and capacity of cells are completely matched and balanced before delivery. This process is very necessary .