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Why connect negative cable last when installing a battery in a car?
Wiki User
∙ 8y ago
If you connect the negative first you have made a connection from the battery to the whole body of the vehicle. When you then connect the positive using a spanner (wrench) and whilst(while) touching the positive terminal connect with the body of the vehicle with the other end you will cause a short circuit. A fully charged 12 volt car battery is capable of heating a spanner(wrench) to cherry red if it doesnt burn it away first. You don't want to be holding it at the time; plus the risk of fire,melting battery case due to internal heat, then acid spillage combined with the EXPLOSIVE GASSES which would usually have gone bang by now, a gas that doesn't go puff IT GOES BANG. sulphuric acid isn't very friendly. I could go on but it would make me sound like an anorak from here on. Hope this helps. paddycanman
Wiki User
∙ 8y ago
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What cable do you connect when installing a battery?
connect positive first then negative that is the safe way to do it
When removing the battery leads from terminals you remove what first?
Remove the negative cable first and when installing the new battery connect the negative last.
How do you put a car battery in your car?
Disconnect negative cable first from old battery and connect it last when installing new battery.
How do you disconnect and reconnect your battery on your 98 Cadillac?
Disconnect the negative cable first and connect the same negative terminal last when installing the new battery.
Where does the negative battery cable connect to?
The negative battery lead cable is to be connected to the negative lead terminal on the battery.
When insatlling a battery what cable goes on what post?
There are typically two cables, one is usually red and the other black. The black cable attaches to the negative terminal on the battery and the red wire connects to the positive terminal on the battery. When removing the battery from the vehicle always remove the negative cable from the battery first. When installing the new battery always connect the negative cable to the battery last.
How do you hook back up a car battery?
Connect the Positive + battery cable to the positive + battery post first. Then connect the Negative - cable to the negative - battery post.
When you charge a battery do you connect positive or negative first?
The man said it Always connect the positive + cable first to the battery. Then connect the negative- cable to the engine somewhere. Never connect the negative cable to the battery itself. Batteries vent hydrogen gas and which can ignite with the slightest spark. For this reason never, ever, connect the negative first and never connect the negative to the battery.
What cable to you connect first when installing a car battery?
red or positive
How do you connect the charger in a car battery?
Connect the positive + red charger cable to the positive + red battery post. Then connect the negative - black charger cable to the engine somewhere. Most engines have something metal sticking up that you can connect to. Do not connect the negative charge cable to the negative battery post, always connect it to the engine.
Which battery cable to you re-connect first?
connect the positive first, the negative. the negative cable doesnt spark as much
How should you connect the battery to the car?
Connect the negative cable first.
