How to jump-start a carby John Goepel
You jump-start a car by attaching the weak battery to a similar but strong battery with cables specially made for the job. It's important to follow the exact order of procedure to do this safely:
- Locate the battery. It has two terminals, each marked with a symbol: - for the negative and + for the positive. In some cars, the battery is difficult to reach, so there is often a more accessible remote positive terminal in the engine compartment.
If you can't access the terminals -- or even find the batter -- consult the owner's manual.
- The good battery must be similar to the one in the car that won't start. Most gasoline-powered cars have 12-volt systems; older cars may have six-volt systems. Park the car with the good battery close enough for the cables to reach the car needing a start, but not so close that they touch.
- Turn off the ignition and all accessories on both cars; set parking brakes; put transmissions in park (automatic) or neutral (manual).
- Connect the cables in this order:
- Connect one cable to the positive terminal of the weak battery.
- Connect that cable's other end to the positive terminal of the good battery.
- Connect another cable to the negative terminal of the good battery.
- Connect the other end of that cable to a ground on the car that won't start.
Check the owner's manual to see if there's a special ground terminal under the hood.
Otherwise, the engine block is a good ground. Do not attach the cable to the negative terminal of the faulty battery.