https://alexnld.com/product/sjcam-sj9-battery-1300mah-rechargeable-li-ion-battery-for-sj9-sj10-series-actioin-camera-accessories/?hilite="SJCAM A10/A20 Battery 3.8V 2650mAh Rechargeable Li-ion Battery Pack For Original SJCAM A10 A20 Action Camera Accessories"