If you reverse the battery cables, yes the battery can possibly explode.
Normally connecting the cables in reverse order can cause it to explode. Overcharging can also cause the battery to rupture but it is highly unlikely it would explode.
They will not explode. It may expand and burst due to corrosion.
Adding sulfuric acid or electrolytes to a gel motorcycle battery is not recommended. Gel batteries are sealed and do not require electrolytes or additional acid. If your gel battery is not functioning properly, it may need to be replaced. Additionally, adding sulfuric acid or electrolytes to a gel battery can be dangerous and cause the battery to overheat or explode. If you are having trouble with your gel battery, it is best to take it to a battery specialist for inspection and/or replacement.
Dead cell in the battery or the ignition or lights were left on.
Logistics, your more likely to use it.
No. The battery will be charged at a rate which is 2* the normal rate. This will cause the battery to overheat which might cause it to explode.
Cause the battery to explode or damage the electrical system in the car.
Overcharging by the alternator or if it is connected in reverse polarity.
Hooking the battery cables up incorrectly. Reversing the polarity can cause the battery to explode.
plates in the battery are arcing together. causing battery to short out and get hot. could explode. or you have a dead short in system. both will cause battery to get very hot.
It is not 1OO% impossible, but it is very, VERY unlikely.