Rechargeable Battery VIDEX Li-pol VLF-B103450-20 is specially designed and intended as a power source for headlamps from VIDEX. It is used in the following flashlight models: VLF-H025C, VLF-H035C, VLF-H045Z, VLF-H147, VLF-H189. When going on a long hike or a distant bike trip, you will definitely need an additional power source for your headlamp, so it is recommended to have a spare one just in case. The battery VIDEX VLF-B103450-20 has a rectangular shape and comes securely sealed in a moisture-protected blister pack. It features an increased capacity of 2000mAh, an operating voltage of 3.7V, and dimensions of 50×34×10mm. The warranty period is 6 months. For details on battery installation and replacement, see the Flashlight User Manual.