What happens if you only disconnect the positive terminal first?
If you remove the positive cable first, there is a chance your tool may come in contact with a metal surface on the vehicle and short out the battery, which can easily damage your electrical system and possibly cause the battery to explode.
What happens if you disconnect a circuit from it’s positive terminal?
What happens if you disconnect a circuit from its positive terminal? The electrons stop flowing, and the current stops. The power source would no longer provide a flow of electrons.
Do I need to disconnect both battery terminals to reset computer?
Will Disconnecting a Car Battery Reset The Computer? The answer is, maybe. Disconnecting the battery for a short time may not do the trick because the car’s computer, or ECU, still has some current in it. Waiting for over 15 minutes after disconnecting the engine will help ensure the equipment is reset.
Do you disconnect positive terminal or negative terminal?
Disconnecting either cable works. The reason they say to disconnect the negative and not the positive is because while taking the positive connection off with a wrench if you happen to touch anything with the wrench while it’s on the positive terminal it can arc and be dangerous. If you travel a lot I would suggest something like a Battery Tender.
When to disconnect battery to prevent drain positive terminal?
To double up on the battery tender. Keep in mind the battery WILL self-discharge even with nothing connected to it. Always disconnect the negative first and reconnect the negative last. Why? What happens if your wrench strikes the chassis?
Is it safe to disconnect the positive cable from the negative cable?
You will be fine. Disconnecting either cable works. The reason they say to disconnect the negative and not the positive is because while taking the positive connection off with a wrench if you happen to touch anything with the wrench while it’s on the positive terminal it can arc and be dangerous.
What happens when the negative battery is disconnected?
Therefore, touching the positive terminal to the body of the car completes the circuit. when the negative terminal is disconnected, it can’t arc, only the negative battery post itself can (that’s where the juice is coming from).