High Energy Density: Lithium-ion batteries have a high energy density, meaning they can store a large amount of energy in a small and lightweight package. This makes them ideal for portable devices.
Long Cycle Life: Lithium-ion batteries have a long cycle life, meaning they can be recharged and used many times before needing to be replaced. This makes them a cost-effective solution for devices that require frequent charging.
Low Self-Discharge: Lithium-ion batteries have a low self-discharge rate, meaning they retain their charge for a long time when not in use. This makes them ideal for devices that are used infrequently.
No Memory Effect: Lithium-ion batteries do not have a memory effect, meaning they can be charged and discharged at any time without affecting their overall capacity.
Wide Operating Temperature Range: Lithium-ion batteries can operate in a wide temperature range, making them suitable for use in both hot and cold environments.
Overall, the 3.7V 4000mAh lithium ion batteries are a reliable and efficient power source for a variety of devices due to their high energy density, long cycle life, low self-discharge, lack of memory effect, and wide operating temperature range.
Supply Ability: 80000 Piece/Pieces per Day
Packaging Details: Each 21700 battery is separated into the inner box by a knife card and then loaded into the outer box.
Q1. Who are we?
A:We are based in Jiangxi, China, start from 2017, sell to Domestic Market(20.00%), Wester Europe(15.00%), SouthemEurope(11.00%), Oceania(10.00%)North America(8.00%).Mid East(8.00%), Eastern Europe(5.00%), Eastern Asia(5.00%).Africa(5.00%), Northern Europe(4.00%), South Asia(4.00%), South America(2.00%), Southeast Asia(2.00%), Central.
America(1.00%).There are total about 501-1000 people in our office.
Q2.How can we guarantee quality?
A: Always a pre-production sample before mass production; Always final Inspection before shipment.