There are two related causes for any connection to melt.
The resistance of the connection was high causing excess heat
OR
The Power draw was to high for the connection.
In your case either the connection was dirty or there was short further down the wire.
Too much current was flowing which caused an overheating problem. Can be the battery has a dead cell, or you reversed the cables.
the two terminals both conect to the electrode of the battery,so, you can conect two batteries with the two "terminals" for parallel circuit or series circuit. Rocky_B - Yes you can do this to give yourself some extra amps, but connect the negative to the negative of the other battery and the positive to the positive of the other battery - This is what previous poster meant by parallel. Warning: If this is for an automobile electrical system, you do not want to connect it in series; i.e. Positive to solenoid, negative to positive of other battery, negative of other battery to ground, as it would be supplying over 24volts to a 12volt system and may seriously mess up your electrical system or cause wire insulation to heat up, melt, and cause fires.
Excessive corrosion causing resistance and heat in the circuit
Yes it can 'melt' metals.
you should only charge a 7.2v NiMH battery pack with its factory charger if you dont it it can melt, cause a fire, or explode
Leaving a wire connected to a battery for too long can create a short circuit, which can lead to overheating, damage to the battery, and potentially a fire hazard. It can also cause the wire to overheat and possibly melt or catch fire. It's important to disconnect the wire from the battery when not in use to prevent these risks.
A positive wire is grounded out to the frame someplace on the car. Best take it to someone else to get it fixed.
Nothing really, i am an Graduate student with a degree in electrical engineering. The negative terminals are only grounds, if a voltage is sent to a ground, nothing happens, the electric current just disperses into ground, which is normally a metal that has no voltage. The positive terminal connected to a the negative terminal on a battery has no voltage what so ever, so nothing will happen your fine, but you will not get any power though, that's the only thing that happens, if anything you might melt a fuse if it has one, but that's it. I disagree, if you hooked both up backwards. You may have "popped" fuses, melted wires or even "fried" computers.
A wrench touching ONLY the negative battery post/terminal will not produce a spark. For the battery to short circuit and generate a spark, something must act as a bridge between the two pots/terminals. If the wrench in question were to touch both terminals, or to touch the positive terminal and a ground (typically the chassis of the vehicle) you will see a spark because the metal body of the wrench would create a path for the electricity to travel. Intentionally creating sparks in this manner is highly UNRECOMMENDED as it will quickly drain the battery and also generate large amounts of heat. I severely burned my hand last year by touching the negative battery terminal when my starter motor died. The inside of the motor had created a short circuit which caused the rubber covering to melt off of the involved wires in just a short time. Luckily I was able to remove the terminal and end the short. The burn I sustained was small in comparison to the amount of damage the battery and vehicle could have taken from it.
Answer: If you can find the battery in the engine compartment then use a 10mm wrench, socket or ratchet to loosen battery terminals. There are two terminals labeled or imprinted on the battery, one is pos(+) and one is neg(-). Loosen both and pull of battery post. Take care not to damage terminals or cables because replacement will be required and much more difficult to accomplish. There will be hardware that holds the battery in place as well. This will either be a plastic wedge with a bolt that is usually 13 or 14 mm size. It will be located at the bottom of the battery and just loosen and remove. The other type of hold down is a 1/4 inch metal bar that runs across the top of the battery and has nut sizes ranging from 8mm to 12mm. Just remove both nuts or bolts to remove the battery. Reinstall everything reverse of removal it is a fairly easy task especially on domestic vehicles. Important, make sure the positive terminal(red or +) is connected to positive on battery and same with negative or the battery could short out onboard computer, melt wires, or cause fire.
In a 1984 Camaro, the fusible link is typically located in the engine compartment, near the battery. It is a short length of wire that is designed to melt and break the circuit in case of an overload, protecting the electrical system from damage. You can usually find it connected to the positive terminal of the battery or within the wiring harness leading to the starter or ignition system. Always consult the vehicle's service manual for specific details and locations.
it will arch out and melt the knobs on your battery and your cables