Quick Overview. A 12-volt switch is the most basic split-charge device you can install in a split charge system.

How does a split charge system work?

A split charge kit charges a secondary leisure battery while a vehicle is driving. Once the engine stops and the power supply is interrupted, the kit isolates the two batteries and prevents the leisure battery from draining the starter battery.

What charger do I need for a leisure battery?

The rate at which a leisure battery is charged is therefore important. If time is not an issue, a charger rated at 4 or 5A should prove sufficient. It might take a day, or even two, to charge the battery fully, but generally speaking, long slow charges are more beneficial than short, fast ones.

What is a B2B charger?

A B2B charger uses the same energy from the alternator – but more of it and in a more efficient way. B2B chargers all work essentially the same: They connect to the starter battery and pull as much power from it as they safely can.

How do DC to DC chargers work?

How does a DC to DC Charger work? Essentially, it takes whatever output is available from the alternator and converts this to a higher rate of amperage. It will charge the auxiliary battery at whatever current the auxiliary battery can take.

What size DC to DC charger do I need?

If you are thinking of going down the DC-DC charger route, then also consider the amps required. As a general rule, battery bank sizes of 75-200AH require a 25-amp dual battery charger and then for higher capacity needs, a 40-amp dual battery charger is recommended.

Can you charge a leisure battery with a solar panel?

A well sized campervan solar panel system is the ultimate way to keep leisure batteries charged for off grid living. While installing solar panels on a camper is relatively simple, its important to size the system to meet your needs and choose the right component parts.

What is the advantage of a DC to DC charger?

DC to DC chargers increase the chance of your 12V batteries always being at close to a full charge. Correctly using a DC to DC Battery Charger means you will minimise damage to your 12V battery system by preventing over discharging.

Is a DCDC charger worth it?

In a nutshell, your DCDC charger will charge your auxiliary battery faster, to a far greater level and safely regardless of your vehicles alternator type. If you run a modern vehicle fitted with a “smart” or low output alternator, a DCDC charger is crucial for optimized charging and battery maintenance.

Is a DC to DC charger worth it?

We recommend DC to DC chargers over isolators because they protect the vehicles alternator, and maximize the batterys lifespan. DC to DC chargers provide a multi-stage charge to the house battery and push more charge current than an isolator.

Can you run 2 DCDC Chargers?

It is possible to run two BCDC charger in the one vehicle, as a reference, please see the diagram in the link below which is a typical layout if a vehicle mounted and trailer mounted BCDC set up. Please note it is a diagram, in your situation you can just consider the trailer mounted BCDC being in the rear of your car.