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For MOST automotive electrical systems, NO, the positive battery terminal is NOT the ground. In most vehicular electrical systems the positive terminal is the "HOT" terminal, not the ground.
The NEGATIVE TERMINAL IS ESTABLISHED/USED AS GROUND, in almost all vehicles.
It is important to note that there are occasionally some exceptions to this standard, and you need to determine which grounding system is used on any vehicle BEFORE messing around with the electrical system.
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∙ 14y ago
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When jumping a car do you connect positive one first?
Yes connect the positive first to the positive battery post, and then connect the negative ground to the engine somewhere and not to the battery.
Which car battery post should you connect first?
You should connect and disconnect the negative post first. This way, if your tool touches ground when you work on the positive post, you don't short circuit the battery.
Would a piece of metal under the hood interfere with a car battery?
Yes if it touched the positive battery post or a live terminal and a ground it would short out.
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.
Which side is positive on a 1990 Mazda miata battery?
All batteries will have clearly marked posts, look for the molded + sign next to it or on the side of the battery. The grounding post will have a negative "-" sign next to it. If connecting your battery to the car, connect the positive post first, then the ground.
How do you test a car battery by removing the ground wire?
Put the red test lead on the positive and the black test lead on the negative post of the battery and see the result.
How do you tell the difference in negative and positive cables on a car battery?
If you have a post battery(the cable attaches from the top) the positive post is larger than the negative.
Is the plus the positive or negative on a car battery?
The "+" sign is used to mark the positive post.
Which color is the positive side on a car battery?
The positive side of a car battery is red - look for red plastic cap or the "+" symbol on the plastic next to it. Also the positive post is slightly larger than the negative post.
How do you tell which side of the car battery is positive?
It is almost always imprinted on the battery next to the posts. If not the positive + post is slightly larger than the negative - post.
Does the ground wire on a car battery go from the battery post to the car frame?
Mostly you will see it bolted to the engine.
How do you measure the voltage on a car alternator?
get a multi meter that reads dc voltage & touch the black (negative -) wire to the negative battery post & the red (positive +) wire to the positive battery post with car running. car off is battery voltage, car on is alternator voltage.
