Sterling Power DC Battery to Battery Charger 12v input to 24V output. DC to DC converter.


Part # BB122470  DC to DC battery charger.

DC Powered Smart Charger, perfect for smart charging your auxillary battery bank in a Work Truck, Camper or Ford Transit van, Doesnt have the limitations of a tradional relay.

12v input at up to 70 amps and output is 24v at up to 35amps. 

Simply connect in between a starting battery and house bank and any time the vehicle’s alternator is running this smart charger will smart charge the output bank.

Available on backorder

SKU: BB122470 Category:

Multiple Activation Modes: Automatic for most non vehicle applications,

Manual for remote activation.

Regenerative braking (requiring ignition feed),

Automatic regenerative braking, requiring no ignition feed.

Input 12v & Output charging at 24V

Much larger model up to 3000W coming soon.

Current is NOT taken from the input battery and given to the output battery.  The B2B uses alternator power to charge the output battery.  Manual mode and regenerative braking mde allows you to override this.

 Safety features:

100% fire proof plastic box.

No screws to corrode.

Thermal power reduction.

Multi stage fan cooling.

The internal heat sink temp is between 158 – 180F. The unit shall drop to half power by this point – additionally reducing temperature.

Night Time Setting: Allows the unit to ran at half the power so the fan noise is kept down.

Boost / Reduce Charging: The B2Bs ensure batteries get the correct charging profile irrespective of high or low input voltages.

B2B turns on at 13.3V and turns off at 13.0V (x 2 for 24V).  Thus, does not drain input battery.  Regenerative braking mode allows the input voltage to drop to 12.2V (x 2 for 24V).

Customizable Profile: Choose your own charging profile on the front panel.

9 preset battery chemistry options: Including AGM, LiFePO4, Gel, Flooded and sealed lead acid.

4 stage battery charging: Thge B2B charges batteries between 5-20 times faster than a stand alone alternator.

Very Simple to install: No electronic Control Unit (ECU) issues.  No complex wiring.  No warranty issues.  Fully prepared for smart alternators (regenerative braking).

  • Remote control optional.


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