Aweek&reg; 2Pcs 14500 2000mAh 3.7V Li-ion Lithium Rechargeable Battery AA Batteries Model-14500 For Cree Led Flashlight + Model-14500 Charger 2 Pack of Model-14500 Li-ion Rechargeable batteries Capacity: 2000mAh, Voltage: 3.7V Dimensions: 5 x 1.4 cm / 1.97 x 0.55 inch (H x Dia.) Fit for camera, MP3/MP4 Player, electronic toys and other electronic devices