The BB1225 is designed to charge up your 12V leisure/auxilliary battery from the power generated from your alternator, whilst your engine is running.

It is designed to work with both older and modern vehicles and boats.

This device charges both lead acid style batteries and lithium batteries.

The included temperature sensor allows for temp voltage compensation for lead acid batteries, 0 degC trip for charging lithium and high temperature trip protection.

• 12V to 12V DC to DC 4 stage battery to battery charger
• 25A Input | Current Limiting - up to 340W output power (continuous)
• Bidirectional - enables starter battery charging `reverse charging`
• With Jump Start Assist - current from output battery back to starter
• 6 selectable chargin profiles - Lead Acid + Lithium
• 95-98% efficient | Using buck boost technology
• Perfectly suited for Euro 6 engines or traditional setups
• 3 charger control modes: Ignition | Vibration | Voltage sense
• 6 automatic recoverable protections