Is it OK to just disconnect the negative terminal?
Is it OK to just disconnect the negative terminal?
Do not let the negative and positive cable ends touch under any circumstances. If the cables do make contact or even get close, it could do a number of harmful things to your car, including frying your alternator, damage the cables, or worse, cause serious injury to yourself or others. Become an AutoGuide insider.Oct 25, 2016
Do I need to disconnect both car battery terminals?
You don't need to disconnect both of them, one will suffice. And whenever you're back, just connect it again. Chances are, your battery might still have some current left to start your vehicle and when your vehicle will run, it'll recharge again.
Can a battery drain with the negative cable disconnected?
Be safe: always disconnect negative first. Disconnected either terminal will prevent drain, as stated already. A battery tender is another safe way to maintain the battery.Aug 16, 2017
Which terminal do I disconnect to save battery?
It is always recommended to disconnect the negative terminal first. When connecting the battery, however, the order will be opposite: Positive end first, then negative terminal after.Nov 10, 2020
Can I just disconnect negative terminal on car battery?
In order to disconnect the battery, all you have to do is remove the cable from the negative port. Do not let the negative and positive cable ends touch under any circumstances.Oct 25, 2016
What happens if I disconnect the negative battery terminal?
If you remove the negative clamp and inadvertently complete a circuit to ground, there will be no current flow because the ground clamp is already grounded. Subsequent shorting of the positive terminal to ground will then produce no current flow because the current has no return path to the negative post.Mar 1, 2007
Do I disconnect the positive or negative to check the alternator?
If you're tempted to test an alternator by disconnecting the negative battery cable, don't do it. A good alternator may indeed keep the engine running without the negative cable, but this was never a good test. In the pre-computer days, you could pull it off without damaging anything.