== == A low battery in the key fob will cause the fob to loose it's function, not it's program. A low vehicle battery will not cause this problem.
No, a starter cannot cause a battery to fail to charge. It could cause the battery to discharge quickly.
A bad alternator/generator would cause a 'no charge' in the system, which would drain the battery while running. Also a shor tin the wiring may cause a false indicator light.
the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.
Dead cell in battery, replace 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.
either it does not charge the battery enough or it will charge it too much which will quickly cause the electrolyte in the battery to evaporate
Cause it is shorted out ,replace it.
Bad battery. Get a new one.
No, a fuse cannot cause a battery to not hold a charge. However a dead cell in the battery will cause it to run down overnight. Also there may be something on that is drawing power from the battery. Under-hood light, trunk light, dome light, glove box light, etc. Also a stuck relay will drain the battery.
It is not recommended to charge a 6 volt battery with a 12 volt battery charger as it can damage the battery. The higher voltage can overcharge the battery and cause it to overheat. It is important to use the correct charger with the matching voltage to prevent damage to the battery.
I assume you mean how long to charge the battery. You should never let the alternator charge a dead battery if possible. The alternator is designed to keep the battery charged but not to charge a dead battery. You put a strain on the alternator and it can cause a diode to burn out. Drive home and then put a battery charger on the battery to fully charge it.
No it will not, that is just a myth.