CB series battery charger can use for car battery, lead acid battery and other 12V battery. CB sereis battery charger1, PWM technology, High frequency design, Compact ... Low Voltage, Short Circuit, Battery Reverse Connection., Output cut off when battery is disconnected.6, Smart cooling fan, start up automatically after temperature ... 2Qty/CTN12 pcsCarton box size52×48×29G.W.21.8KGS Battery Charger