This product series is primarily suitable for a wide range of electronic products and devices, including Bluetooth/wireless devices, voice recorders/talking pens, portable music players/speakers/MP3 players/amplifiers, rechargeable lighters, portable power banks, medical devices, smart home/IoT devices, navigation systems (GPS), cell phones, and toys.
Compared to standard 3.7V battery cells of the same model, the cells in this series offer higher energy density, providing greater energy output and longer battery life.
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 × 15 hours (Standard) / 0.2C × 7.5 hours (Fast)
Standard Charging Method: Charge at a constant current (CC) of 0.1C until 4.35V is reached, then charge at a constant voltage (CV) of 4.35V until the current drops below 0.01C
Discharge Cut-off Voltage*: 2.8V
Minimum Storage Voltage: 3.8V; otherwise, recharge promptly

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