This series of products are mainly suitable for Bluetooth/wireless devices, recording/dot-reading pens, Walkman/speaker/MP3/amplifier, rechargeable lighters, mobile backup power, medical devices, smart home/IoT, navigators (GPS), cell phones, toys, and other kinds of electronic products or devices.
This series of batteries have higher energy density compared to the corresponding models of ordinary 3.7V batteries, which can provide more energy output and longer endurance.
warnings: This product is a semi-finished product of the factory, without any protective measures, need to be processed and assembled before use, non-professionals please do not unauthorized processing and assembly.

Electrical Characteristics: 
Charging current: standard ~0.1C/fast ~0.2C
Charging time: 0.1C*15hrs(standard)/0.2C*7.5hrs(fast)
Standard charging method: 0.1C constant current (CC) charging to 4.35V, and then 4.35V constant voltage (CV) charging to current less than 0.01C.
Discharge cut-off voltage*: 2.8V
Minimum storage voltage: 3.8V, otherwise it should be recharged in time

temperature characteristic::
Charge: 10~45℃ Discharge: -10~55℃    Storage: 0~25℃
Relative humidity: 45~85%