Nothing happens to the vehicle if you connect the negative side first.But is is safer to connect the positive side first.
Reason If the negative side is already connected and you put the positive side on you take a chance of touching a part of the body or radiator with your wrench while tightening it, causing the positive side to ground out.
If your negative side is not connected yet and you touch the wrench to the body while tighting the positive side nothing will happen.
So installing the positive side first reduces the chance of shorting the battery out which could cause the battery to explode.
You connect the positive terminal first.
If you connect a negative battery terminal to another negative terminal, you would be creating a short circuit, which can lead to excessive current flow and potential damage to the battery or the connected devices. It is not a recommended practice and can be dangerous.
The negative battery lead cable is to be connected to the negative lead terminal on the battery.
Always remove the negative (-) cable first. When connecting it back up connect the negative last.
Assuming the vehicle has a negative earth You connect the positive lead first The reasoning When the positive lead is fitted first, if you dropped a spanner across the battery negative terminal to the car body all you would do is make the circuit. If you connect the Negative lead first, and you dropped a spanner across the positive battery terminal to the car body you would then have a dead short
Assuming neither battery is used to start the engine, simply connect the positive (+) terminal of the first battery to the positive terminal of the second battery. Then connect the negative (-) terminal of the first battery to the negative terminal of the second battery. Connect the load circuit to the positive and negative terminals of one of the batteries as usual. You may want to charge the batteries separately before making the connection, since connecting a charged battery to a discharged battery will result in a very large current flowing from the charged battery to the discharged battery, possibly damaging the wiring or either battery.
Connect the positive terminal on one battery to the negative terminal on the other with heavy wire and battery clamps. Connect the remaining positive terminal to the metal chassis of the tractor, and run the remaining negative wire to the items to be powered, with any luck at all, through a fusebox.
Connect them in series. With the 2 batteries sitting side by side just connect the negative terminal (-) on battery # 1 to the positive terminal (+) of battery # 2. Now connect the red hot cable to the positive terminal of battery # 1. Then connect the negative black cable to battery #2. You will have 12 volts but the amperage of only 1 battery.
Yes. That is correct.An easy way to remember/ installation is the opposite: When replacing battery: FIRST disconnect the NEGATIVE -Terminal (black) then the POSITIVE +(red) Installation:Connect the POSITIVE Term FIRST then the NEGATIVE Term.
To the battery post with the " - " symbol not the one with the " + "
sure connect the positive terminal directly to the booster battery and the negative battery terminal to the body
Connect the positive clip of the battery charger to the positive terminal on the battery. Connect the negative clip of the battery charger to the negative terminal on the battery. Select the charge rate you desire either 2,4, or 6 amp. The newer battery chargers will let you know when it is fully charged.