Item: BLU 7531 Manufacturer: 7531 More information and specs here: P12 Batter Charger 12DC 25A 25 Amps. User Defined Charge Profiles for setting voltages to match the battery manufacturer €™s recommendations. User Defined Absorption Stage Values determine when the charger should exit Absorption Stage in order to prevent overcharging. Charge Coordination integrates with Blue Sea Systems €™ Automatic Charging Relays to separate battery banks while the P12 is operational. PreFloat Stage prevents over charging by individually moving batteries out of Absorption Stage.