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You can potentially do a lot of damage, far more in a late model car. Perhaps none at all to a pre-war one. It will depend entirely on the particular car you do it to.
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∙ 11y ago
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What happens if you connect a car battery backwards?
it will arch out and melt the knobs on your battery and your cables
Can you start a car if battery cables are on the wrong post?
no- if you connect a battery the wring way round you will short the battery on a modern car you may damage the ECU
What happens if you connect the ground wire to the terminal and the red wire to the - terminal on the car battery ie connect the battery backwards but did not start the car?
once a battery is connected even if the key is not in the ignition, there is always power at certain points in your car. Connecting a battery backwards will not start your car, but it can and will fry the wires to your starter.
What happens when the car battery connectors connect together?
When a car battery in connected to itself (i.e. You connect jumper cables onto a battery and then connect the other two connectors to each other), you create a continual circuit with the battery and nothing else. A similar effect is when you hold a 9 Volt battery to your tongue and you feel a small but continual "zap". Imagine this effect, but much greater. Sparks will appear when the connectors are first connected. Warning: Do not do this. This will damage your car battery. The only reason you should connect a car battery through jumper cables is to connect it to another car's battery in order to "jump" a car.
What happens when you charge a car battery on the wrong polarity?
You can't recharge it hooked up in reverse. You will destroy the battery or the charger if you try it.
Why does alarm system goes on and the car will not star when replacingtrying a new battery on a Camry 97?
Possibly, wrong polarity. Check whether you connect the battery correctly or you are using a correct battery.
Which battery post do you connect first when replacing a car battery?
You connect the positive terminal first.
What happens when you connect the car positive and negative battery terminals together Will this reset car computers?
If you connect the terminals together with them unhooked from the battery and the engine off, yes that is also called a capacitive discharge.If you connect the terminals together with them unhooked from the battery and the engine off, yes that is also called a capacitive discharge.
Can you charge a car battery the wrong way round?
No! You should never cross connect two batteries or a battery to charger in this way. At minimum the battery could be damaged. At worst it could cause an explosion.
How should you connect the battery to the car?
Connect the negative cable first.
What happens when you connect car battery positive to negative terminal?
Very Dangerous........it would be a dead short. andcouldcause a fire or explosion.
What cable do you connect first on a car battery?
Disconnect the negative cable first when disconnecting a car battery
