Iota DLS-45/IQ4 12 Volt 45 AMP 4 Stage Automatic Smart Battery Charger/Power Supply converts nominal 108-132ac voltage to 13.4 dc voltage for both load operation and 12V battery charging ideal for charging all types of 12 volt lead acid batteries including flooded, absorbed glass mat ( agm ) and gel cell includes the iq4 smart charge controller which automatically provides three-stage battery charging for safer charging and longer life for your systems battery 4 stage charging: bulk, absorption, float and Equalization Stage as a power supply the units tightly controlled regulation allows the user to operate a nominal 12vdc load up to 45 amps