The universal li-ion charger is for most common Li-Ion and Li-Polymer batteries (3.6 / 3.7 / 7.2 / 7.4V). These types of batteries are for digital cameras, camcorders, mobile phones and MP3 players. The charger offers an easy to use solution with only 2 flexible contact pins. Other features include: Automatic polarity detection; UK mains plug (worldwide use 100-240V AC); Car adaptor (12V DC). The universal Li-Ion charger is an entry level charger for Li-Ion batteries. The charger is designed for those who would have bought the manufacturer’s custom battery charger to charge one particular type of battery.