KP Original 432224 3.7v 500 mAh Rechargeable Battery for Bluetooth handset/Speaker 500 mAh

KP 432224 3.7v 500 mAh Rechargeable Battery for Bluetooth handset/Speaker, 3.7v Do not overheat or over charge Charging Volt 4.2 VDC, Out volt 3.7v Don’t over charge or over heat use charging protector or proper charger with auto cutoff when charging is full to charge battery,