Bluetooth Headset Wearable Device Battery , Lithium Ion Rechargeable Battery 3.85V 5150mAh

Apack will be responsible for replacing the battery against defects or poor workmanship for 1 year from the date of shipping.
Any other problem caused by malfunction of the equipment or unsuitable use of the cell is not under this warranty.
Worldwide approvals and certification of safety standards No development costs, fast time-to-market Life expectancy:
Up to 80% of initial capacity after 500 cycles Smart batteries with numerous features according to the SMBus specification Rechargeable batteries have built-in high quality PCB board, thermal protectors and circuit breakers,effectively avoiding the over-charge, and short circuit.