That cause is that something metallic [coins, keys, or something similar] in the pocket contacted the battery's two terminals, created a short circuit, and thus a very heavy drain on the battery. That heavy current drain rate caused the battery to heat up.
This is a very dangerous practice, and many times has been documented to have caused extremely severe and painful BURNS to people who have ignorantly carried batteries in their pockets. It it also has been documented that such shorted batteries can and have exploded causing severe and painful injuries.
Do NOT carry batteries in your pocked, BUT... IF you are going to do so, cover both terminals with a plastic terminal cap [like comes with new 9 volt batteries], or securely cover the terminals with electrician's tape.
It short curcuited with your change etc
no, a 9 volt battery is small (goes in a smoke detector) a 9.6 volt battery is much larger, and it is not a DC battery (direct current) but NiCd (nickel cadmium.) two totally different things.
Current will go up by a factor of 6 times in that scenario.
Yes, for about .1 second, then it will blow the lamp. A 9v battery will however light three 3.5v lamps.
All Batteries are DC or Direct Current.
A D cell battery has a voltage output of 1.5 volts, while a 9 volt battery produces about 9 volts. This is just the potential energy though. D cells provide far more current for a longer time then a 9 volt battery. In terms of overall power output, a D cell in give you many times more power than a 9 volt battery. Physical size, in this case is a good indicator as the material inside is the same.
It heats up very hot and may explode.
No
No, the battery will be overcharged and battery damage will occur if it is done.
No, a lead acid battery is a wet cell battery and a 9 volt alkaline battery is a dry cell battery.
This is not advised! The 9-volt charger might have a current limiter so that nothing burns up, but it any case if left on it will destroy the 6 volt battery by overcharging. A 6-volt charger is not expensive.
no
1.3cm
a 9 volt battery
buy a battery charger
it operates a battery,mostly a 9 volt battery
One is 9 volts and the other is 12 volts. They do not interchange!
No.No.