Kussmaul Electronics' Auto Charge 7 LPC 445-4290-5 is a 7-amp battery charger with a selector switch for two charging modes: float-only or three-step. The charger is lightweight and has a low profile. The clean output poses no interference with radios and other mobile devices. The lead acid gel cell switch selects optimum charge/float voltages on battery type. This charger’s current limiting prevents damage from overload while the load activated cooling fan allows continuous operation at full-rated output. A heavy-duty stainless-steel case meets the rigors of emergency vehicle use.