A battery jump start using is a good way to get your car going using jumper cables
which you can get from Amazon for between $16.00 and $38.00 (US). We recommend a
good set for jumper cables because they carry a large amount of amperage and
you want the jump to work without short circuiting. You will also need a car
that has a good battery as well.
How Jumper Cables Work?
Jumper cable is a pair of large gauge wires capable of carrying a high
amount of amperage from one battery to the other. This is done by using two
large spring loaded clamps on either side of the jumpers, two negative and two
positive which will connect two car batteries together.
Let's Get Started!
You will need to park the car with the good battery next to the
car with the
dead battery. This can be done nose to nose or side by side. You want the
batteries to be close enough to one another so the jumper cables reach. It's a
good idea to wear gloves and protective eyewear before beginning.
1. Lift the Hood on Both Cars: You will need to located the battery
in each car. Nine time out of ten they are
hood but sometimes they can be located in the trunk. Remove the terminal
covers if any so the jumper cable clamps can get a good connection.
2. Inspect Jumper Cables: Gather your jumper cables and inspect them
for any broken leads or open wires. Because these cables will be carrying high
amperage they need to be of high quality and free from damage.
3. Separate the Jumper Clamps: You will be connecting the jumpers to
the car with the dead battery first. The opposite end of the cables must be
separated. If these ends are touching when you connect the jumpers to the
battery there will be a short circuit and sparks which can cause the battery to
explode. We don't mean to scare you, but inside the battery there are hydrogen
gasses which a spark can ignite. It doesn't happen very often but it does
4. Identify Positive and Negative Battery Terminals: The most
important rule when jumping a battery is identifying the positive + and negative
- battery terminals on both the dead and charged battery. The jumpers must be
connected in the same polarity, in other words positive to positive and negative
to negative. The positive terminal will be slightly larger in size that the
5. Connect the Jumper Cables: Starting with the dead battery connect
the jumper cables by squeezing the clamps of both the positive and negative
clamps and attaching them to their respective terminals. Black for negative - and
red for positive + which should be indicated on the battery. Once connected,
wiggle the clamps to get a good connection on both.
6. Connect the Positive Jumper Only: Now you are ready to connect the
charged battery to the dead battery. Again making sure the positive and negative
terminals are understood connect the positive jumper clamp to the positive
terminal which will be red or have a + sign near it. Take an extra second to
make sure you are not hooking up the jumper cables backwards which can cause
electrical system damage to both cars. Wiggle the clamp to get a
7. Connect the Negative Jumper to Engine Ground Only: The final
connection of the jumper cables will be to an engine ground only. The reason for
this is because the final connection will make some minor sparks which can
ignite hydrogen gasses inside the battery which can cause an explosion. This is also the reason for connection the
charged battery last because the dead battery will be more prone to these
explosive gases. For safety proposes find a metal bracket or bolt and make the
final connection for the jumper cables. Wiggle the clamp to ensure a good
connection. Also you want to be sure the cable and clamp are clear from rotating
engine parts such as the fan blade or serpentine belt.
8. Start the Car with the Good Battery: Go ahead and start the car
with the charged battery this will enable the alternator and boost the voltage to the dead battery. It's a good idea to allow the engine to run for
about 5 minutes before trying to start the engine with the dead battery. This is
because the car that has the running engine is now charging the dead battery.
Once the engine is running rest your foot on the accelerator to raise the engine's
idle. This will help the alternator output more amperage.
9. Jump the Dead Battery: Now you are ready to turn the key of the
car with the dead battery and start the engine. Its a good idea to have anyone
in the area to step back when cranking over the car with the dead battery. Once
the car has started allow the car to run which will help charge the battery. Sometimes a jumpstart will not
work because the
has shorted inside and needs replacement.
10. Disconnecting the Jumper Cables: Once the dead battery car has
started it is time to remove the jumper cables. Shut the car with the charged
battery off. Then remove the clamp from the engine ground to avoid sparks from near the
battery. Remove the remainder of the jumper cable's clamps and then store them
away for next time they are needed. Leaving them in your trunk or near the spare
tire is a good idea because they will come in handy.
Once the engine is running if the battery warning light is on it means the
alternator could be bad and needs to be tested and then
replaced if it is found to be not charging. If the battery is new but is
repeatedly drained your
have a draw which needs to be fixed so the battery can operate normally.