
The first stage pumps maximum power into your battery until it’s nearly full. Every battery charger sold at Supercheap Auto today has at least three stages. Well, older chargers had a single stage whereby you switch it on and switch it off manually before it overcharges your battery.


Most of the time, you’ll choose a 12 volt charger. If you need to charge a flat battery, these are cases where a mains power battery charger is invaluable – but there’s a bit of a process to choosing the right one for you.įirst - look at voltage.
CAR BATTERY CHARGER USE HOW TO
Learn how to wire in a dual battery system.

Even if your car sits unused for a few weeks – your battery will slowly self-discharge when a battery is connected to the system. It replaces that energy, and keeps electrical systems powered while it’s running.īut if you like to run accessories while the engine is off, or have the misfortune jump-starting a flat battery your vehicle would need a long drive to replenish that energy. The energy used has to be replaced, and that’s what your alternator is for. The primary function of your vehicle battery is to start the engine and power accessories while it’s running.
