Optional AC Charger Kit - SKU 6710This optional kit charges the battery using a specialized connection cable and AC power adapter. Designed specifically for use with Vantage Connect (6620) and Heavy Duty Solar Power Kit (6612) to charge the 6 volt battery for installations with prolonged periods of low light and accessible power. The AC adapter has a universal input (100 240V, 50 60Hz) and will work anywhere in the world. A wall plug adapter may be necessary for use in some countries.