ON THE WAY&reg;8Pcs 14500 TCR 2000mAh 3.7V AA Rechargeable Li-ion Battery for Battery Case Large capacity and PCB protection board Provides excellent continuous power sources to your device High energy density, long life battery Holds 85% charge over 12month period.Warm tips:Before purchase, please make sure the battery voltage Fit for camera, toys, electronic toys and other electronic devices