Am I in your car, just in case. 3 Möglichkeite to charge the battery: Winch, cigarette lighter, AC adapter for wall outlet. But the battery lasts so long, I got the flashlight again and charged after no idea how much months without use, the battery is not yet over. The lamp has 3 levels: blinking, steady light, continuous illumination light I mean it could be a little brighter yet ....