The Varipulse G2 comes with a range of features designed around re-powering your NiMH or NiCd batteries. Features include Delta peak cut off, variable charge rate, auto trickle charge and auto shut down. Your batteries are also protected from damage with the incorporation of reverse polarity protection and a fused AC input/DC output. Able to charge from either a 10~13.8V DC power source or a 110~240V AC supply. Pro-Peak have an enviable reputation for producing feature packed products that offer truly outstanding value!