... power(W)Lead-acidLi MnLi Fe(Limited)ALead-acid(A)Li(A)(kg)(mm)Lead-acidLi MnLi Fe1U1214.816.814. ... .2327.6350.45U607471.473510.53703573651 Scientific and advanced circuit design, high interrupt resistance2 reasonable price3 fast charging4. multi- ... over heating, over current, pre-charging protection5. User-friendly design, easy to operate New design,high quality DC/DC transformer,professional factory