The ANSMANN charger ACS48 is designed for 4-8 cell battery packs with a voltage of 4,8V-9,6V. With clear LED indication you can see if the battery pack is charging or if there is an error. If the polarity is correct, the charge indicator will light permantently red and the battery pack is charging. If the charging indicator flashes red, please check if the battery pack is connected in reverse or defective (short circuit). Included are an adapter cable with Tamiya socket and 8 standard output plugs for connecting in either polarity. The charger includes short circuit and wrong polarity protection and is made for worldwide use (100-240V AC / 50-60Hz).