Nothing unless you connect the negative cable to the positive post. When you do that you will destroy the battery and it may possible explode. You may also damage the electronics in the vehicle.
assuming both negative posts are also connected to a common ground you will get double the amperage... take two car batteries that are both 12 volt 500 amps and you will have the same as a single 1000 amp battery. connect one positive to the negative of the other battery and you double the voltage. so in the case above you would end up with 500 amp but 24 volts.
Your entire car will lose power, as will the engine. Since there is no power to run the ignition coils and fuel pump, your car will shut off completely.
The vehicle battery's main purpose is to supply power for the starting system and to power some accessories when the engine is not running. The proper procedure for changing or installing a battery... remove the battery cable first from the negative battery terminal, then from the positive. Install opposite, attach the positive cable lead, then the negative.
The battery post positive terminal is where you connect the positive cable. Connect the negative cable to anyplace on the engine or chassis. Connect positive first and remove it last.
you hook the positive cable,(usually the red) to the positive battery terminal first then you hook the negative cable(usually black) to the negative terminal if you hook it the other way you can get sparks or arcing that can cause damage or a fire PS: if both cables are same color, the negative cable is the one bolted to the frame or the engine.the poitive is bolted to the solenoid or starter
This is a safety precaution. Disconnecting the ground cable protects you from accidental shocks, accidental engine starts (by someone unaware of your presence underneath, perhaps), in airbag equipped vehicles it prevents the airbag from deploying accidentally (expensive and/or injurious). Obviously, if the repairs in question require that battery power be available, you wouldn't disconnect it, but the protection it offers is well worth the extra minute it takes to disconnect the cable. As far as why the negative instead of the positive cable is disconnected, the reason is that if you are touching the positive cable and anywhere else on the vehicle, you'll get shocked. Not so, with the negative cable. Also, the negative cable seems less prone to sparking than the positive cable. If, however, you are working on a vehicle with positive ground (uncommon in North America), the positive (ground) cable is to be disconnected
It is very common for the battery to discharge on a vehicle sitting idle for 3 months. First disconnect the positive + & negative- battery cables, and clean the battery post and cable connections off. Apply a thin layer of dielectric grease or Vaseline to the battery post and connect the negative - cable. Put a battery charger on the battery and let it fully charge overnight. If it will not accept a charge it is defective. It it does show fully charged, connect the positive + cable and see if the engine will start. if not, then more than likely the battery is dead and needs replacing.
current flows from the negative to the positive cable and back into the battery cells, recombining with the element depleted of electrons that are flowing out the negative cable. The process is not 100% efficient and the battery will eventually cease producing current.
Connect the Positive + battery cable to the positive + battery post first. Then connect the Negative - cable to the negative - battery post.
I assume you're asking how can you tell which is positive and which is negative? The red cable is positive in the black cable is negative. But if they are not color-coded the positive battery post is slightly larger than the negative battery post. If you try to connect the negative cable to the positive post it would be a tight fit and if you connect the positive cable to the negative post it would be loose.
The red cable is the positive and the black cable is the negative. The positive post is slightly larger.
Red, positive + cable to Positive + battery terminal. Black, negative - cable to Negative - battery terminal.
Red cable to positive, black cable to negative.
1. Remove negative battery cable 2. remove positive battery cable 3. remove battery 4. install new battery 5.attach positive cable 6.attach negative cable
Red/positive cable to red/positive cable. Black/negative cable to black/negative cable. The battery is under the cover in front of the air cleaner.
Black is negative and Red is positive.
Audio battery???? If you mean Auto Battery then Red Positive (+) RED cable goes to Positive (+) post on battery. Black Negative (-) cable goes to Negative (-) post.
Nothing as long as you did not then connect the other cable.
You don't, you connect to the battery from the battery of another car. Use the positive cable to connect the two positive electrodes and the negative to connect the two negative electrodes.