4-20PCS Douplepow 3.7V 10440 rechargeable lithium battery AAA 666mWh lithium-ion battery with TYPE-C cable fast charging

Material: lithium ion (Li-ion)

Capacity: 666mWh

Rated voltage: 3.7V

Input: TYPE-C charging interface

Lifespan: 1500 cycles, life expectancy up to 10 years

Environmentally friendly batteries, standard batteries for flashlights, speakers, radios, toys, cars, etc.

1: Environmentally friendly and battery-free, does not contain toxic elements such as mercury and lead, is recyclable and easy to use.

2: Ultra-low self-discharge battery, which can save more than 70% of power after three years of use

3: No memory effect. No damage to the battery, ensuring battery life and capacity

4: Super stable voltage, high current discharge, flashback 30% faster than traditional batteries, battery voltage 0.1V higher than ordinary batteries

5: Charging times up to 1500 times, lifespan up to 10 years

6: Strong cold resistance, ensuring sufficient battery power even in the cold north