The Sterling Power pro charge waterproof battery to battery chargers are the most advanced and powerful battery to battery chargers currently available in the world today.
The battery to battery chargers have become extremely popular as they fast charge batteries as you cruise along without the need for complex wiring, touching your alternator, voiding the alternator’s warranty and tampering with the electronic control units (ECUs). You can provide the onboard batteries with a fast 4 stage charging profile with a very simple and speedy installation. All of the benefits of advanced charging without any of the draw backs. Simply connect the charger between the battery being charged and the battery you wish to charge.