A slim and fast charger with intelligent safety and technical features, which charges up to four AA or AAA batteries at the same time. The robust housing, partly made of perforated metal, also serves as a battery organizer, through which your batteries are well protected at home or while traveling.The complete charging of two batteries takes a little more than 2 hours, for four batteries it is a little more than 4 hours (AA batteries 2100mAh), power is supplied via a USB connection. The LED display in two colors indicates the charging status and indicates whether single-use batteries or bad batteries have been inserted. Other safety features include the automatic power-off timer and the Minus-Delta-U full-charge detection, which helps to prevent overcharging, overvoltage and short-circuits as well as an impairment of the battery life.This text is machine translated.