There are two main ways to charge a 6-volt car battery: use a car battery charger or, charge by connecting your car battery to another car. The first method is the best and safest, the second method is helpful if you are not near an electrical supply and will provide enough power to get your car started. Both methods are easy to do. Some battery charges offer dual voltage, by allowing you to charge your battery at 6- or 12-volts with a flip of a switch..
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Things you need
- Car battery charger
- Car battery cables
- Another car
Disconnect the battery cables that attach to your car from the 6-volt car battery. Use a suitable spanner or wrench. Ensure the cables are kept away from the battery.
Connect the two cables attached to your battery charger to your 6- volt car battery. Car battery cables are coloured red for positive and black for negative. Each cable will also be labled "+" and "-" as will the battery.
Check you have selected the correct voltage on your battery charger. You can usually switch between 6- and 12-volts.
Plug your charger into the electricity supply then turn on. Your 6-volt car battery starts to charge. To fully charge your battery, it is best to leave it charging for 12 hours or overnight.
Check to make certain the car you are going to use to charge your 6-volt car battery also has a 6-volt battery. If it has a different voltage then you need to find an alternate car with a 6-volt battery.
Position the car you are using to charge your 6-volt car battery as close to your car as possible. Connect battery cables to both car batteries. Ensure both engines are switched off. Remove the internal battery cables from your car using a suitable spanner or wrench. Leave the cables on the other car battery.
Use purpose-made battery jump leads and connect the black negative cable to the negative terminal of your car battery. Connect the red positive cable to the positive terminal of your car battery. Keep the other ends of the battery cables away from each and the cars.
Connect the other end of the black negative cable to the negative terminal of the other car. Connect the red positive cable to the positive terminal of the other car. Check all the connections are secure. Make certain that the cable attached to the second battery are well away from any parts of the car engine that move. Recheck.
Turn on the engine of the other car, causing the other battery to charge.
Tips and warnings
- Only use the method is Section 2 as an emergency. Your battery will usually be charged enough to start your car after 15 to 20 minutes. Wait to check your car battery is charged until you have disconnected the battery cables attached to both cars. Remember to reconnect your car battery to the car.
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