No. The computer and charger are "intelligent" and will prevent overcharging.
When you overcharge the battery on your laptop computer, it can wear out more quickly. As soon as the computer says that you are using reserve battery power, you need to plug it in. When the charging indicator light turns from orange to green, though, you have to unplug it. This means that the battery is full. You do not want to keep sending electricity into it after it is full. Unplugging it will extend its life.
Shopkeepers should not overcharge.You can't overcharge a battery.
The life expectancy for a brand new computer battery is years. If you take care of it, don't overcharge it and let it run flat every time, the battery can last up to 7 years depending on your care.
You can but you can alos easily overcharge the battery.
Defective voltage regulator.
No, it will overcharge the 6 volt battery.
You might have caused the alternator to overcharge which could have damaged the computer at the worst, or blown a fuse at the least.
Defective voltage regulator.
Overcharge, often due to a shorted cell.
Yes, but make sure you do not overcharge the battery.
Sure, if the alternator voltage regulator is defective it can overcharge the battery.
No, a 12 volt charger will overcharge a 8 volt battery and destroy it.