General description Sealey Premier Battery Support Unit Charger & Maintainer 30A is a fully automatic 7-stage battery charger and maintainer, designed for charging a variety of EFB and AGM (stop/start), GEL, lead acid, and calcium batteries with auto chemistry selection. It also features an additional function to charge lithium batteries via a selection button on the front of the unit. The unit supports zero volt battery charging, enabling recovery and charging of a completely discharged battery, provided any load is removed from the rechargeable battery. It includes an old battery sulfation repair function and a 13.5V DC power supply for battery support during prolonged electronic diagnostic checks. Technical specifications Model No.: SPBC30 Nett Weight: 2.8 kg Charging Voltage: Automatically selects and charges 6V, 12V, or 24V Power Supply: 13.5V DC Other information Reverse polarity, short circuit, over temperature, and overcharging protection Built-in cooling fan that operates