The battery comes fully charged. After several hours of use, you should charge the battery with the included charger. Do not allow the battery to completely discharge since this will ruin it.

The charger module is attached to the top of the battery. To charge the battery, connect the red lead from the module to the red (+) plug on the battery. Connect the black lead to the black (-) plug on the battery.

Plug in the wall adaptor to any 110-120 volt AC 60 HZ recpetacle.

Normal charging can be done overnight. Charger automatically regulates the current so that the battery cannot overcharge.