The XTRA Charger

Just arrived: The XTRA Charger. This not only cuts charging time in half by using an additional socket. The charging current is adjustable in steps from 1 Amp. Up to a maximum of 14 Amps. This extra feature protects you, for example, from only moderately safe camping power sockets. A bright spot for your wallet: The XTRA Charger is cheaper that an additional battery.

more info