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In a car, motorcycle, truck, etc., prevention of overcharging is the job of the voltage regulator part of the vehicle's battery charging system.
If a simple, unregulated, battery charger accessory is used to recharge a battery, it must be disconnected as soon as charging is complete otherwise the battery will start "gassing" - giving off acid fumes along with hydrogen and oxygen gases, which is a very dangerous situation. If allowed to continue the battery would be damaged permanently and there could be a dangerous explosion.
Intelligent battery chargers, which detect when the battery is fully charged, are much safer to use because they shut off the power automatically.
What else can I help you with?
What causes the electrolyte level in a car battery to be low often?
Overcharging. Check your electrical system to see if the alternator is overcharging the battery. It can also be the battery is defective and needs replacing.
When should the charging process be stopped to prevent overcharging once the battery is full?
The charging process should be stopped once the battery is full to prevent overcharging.
Can a car battery be damaged with a falty alternator?
Yes if the alternator is overcharging the battery.
What causes a new car battery to expand?
Overcharging.
Why is my battery damp?
It usually means that the battery is going bad, and the alternator is overcharging to compansate.
Can over charging 12 volt battery Be bad?
Yes, overcharging the battery will ruin it.
What causes lead acid battery to bulge or bloat?
Failed battery, or alternator is overcharging.
What causes gasses in a battery?
Overcharging (bad voltage regulator) or a short circuit inside the battery.
When attempting to recharge a car battery what might cause the destruction of the good battery?
Reversing the cables when you connect them. Overcharging the battery.
Why did your car battery crack?
Overcharging or defective battery. They will also crake in freezing temperatures if the battery has lost it's charge.
Will a lead-acid battery be damaged by overcharging?
Yes, most definitely.
What is a likely explanation when an alternator is overcharging a battery?
Defective voltage regulator.
