Is the red terminal on the battery positive or negative?

[KaydenFitz]

The red terminal on the battery is positive, while the negative terminal is black. Be careful not to reverse the connections when wiring, as doing so can damage all the electronic devices in the vehicle. There are plus and minus signs next to the battery terminals; simply follow these signs when connecting the wires. The battery is a crucial component in a car, responsible for powering all electronic devices when the engine is not running. Car batteries, also known as storage batteries, are a type of battery that works by converting chemical energy into electrical energy. The commonly referred-to car battery is a lead-acid battery, which is primarily made of lead and its oxides, with a sulfuric acid solution as the electrolyte.

[McBella]

I've seen too many people mix up battery terminals causing trouble. The red terminal is definitely positive, and the black is negative. Reversing them can blow fuses or even damage electronics - I once witnessed a car's engine management system fail, costing over a thousand in repairs. Standard procedure is to connect positive first when replacing batteries, then negative, using red/black to avoid short-circuit sparks. Also, positive terminals are usually slightly larger for easier identification. For corrosion, baking soda works for cleaning. Regularly check voltage - if it drops below 12 volts, it's time to charge or replace.

[EmersonMarie]

In my daily auto repair work, the red battery terminal is always the positive pole - this golden rule must never be violated. Wrong connections can lead to consequences ranging from burnt-out bulbs to damaged electronic control units. I advise beginners to remember: red is positive, black is negative. During actual operation, always disconnect the negative terminal first when removing an old battery to prevent accidental contact. Relatedly, battery health directly affects starting performance, and loose terminals can cause vehicle breakdowns - regularly tightening the nuts is highly practical. Always wear insulated gloves for safety during maintenance. Remember, proper connections can save you big money.

[RobertFitz]

The red battery terminal is definitely the positive pole, connecting it wrong would be disastrous. When I jump-started my friend's car, I saw sparks from reversed clamps and quickly corrected it in panic. The correct way is red to red and black to black to avoid short-circuit risks. Old batteries accumulate more corrosion - clean it and apply some Vaseline to prevent rust. Normal voltage is around 12.6 volts; dropping to 11.5 volts may cause starting difficulties, replace it promptly when needed.

[DeJuliette]

The red battery terminal is the positive pole, originating from the international standard where red represents the positive electrical safety signal. During maintenance, I often check the markings: the positive terminal has a + symbol. Reversing the connection may cause a short circuit, damaging the insurance system, and in severe cases, lead to battery explosion. During maintenance, disconnect the negative terminal first and connect the positive terminal first when installing to reduce accidents. Relatedly, terminal corrosion can cause poor contact, affecting charging. Clean it with a steel brush to maintain conductivity. If the voltage is low and the startup is slow, check if the generator is faulty.