General description Sealey Premier Battery Support Unit Charger & Maintainer 40A is a fully automatic 7-stage battery charger designed for a variety of battery types including EFB, AGM (stop/start), GEL, lead acid, and calcium batteries. It features an additional function to charge lithium batteries via a selection button on the front of the unit. This unit also supports zero volt battery charging, allowing for the recovery and charging of completely discharged batteries, provided any load is removed. Technical specifications Model No.: SPBC40 Nett Weight: 3 kg Charging Voltage: Automatically selects and charges 6V, 12V, or 24V DC Power Supply: 13.5V Battery Support Function: Yes Charging Stages: 7-stage Cooling Fan: Built-in, operates only when required Other information Reverse polarity, short circuit, over temperature, and overcharging protection Old battery sulfation repair function Intuitive LED screen displays charging voltage, current, battery capacity percentage, and