The phone itself will not be damaged. Once the charge is completed it will stop charging the phone. It can damage the battery though. If your phone is only half way down on the battery and you plug it in, the phone retains that memory. Once in a while it really doesn't matter but if you are constantly charging your phone every day when the battery isn't in real need of it, eventually the battery will go bad. It may even get to the point where it won't charge at all for you anymore. The general rule of thumb is to let your phone die completely about once a month to keep the battery fresh. What I would recommend though, is not charging your phone every day. Let the battery wear down. Buy a car charger so that you can charge it while driving if it needs to be. This will save you from buying a new battery every 9-12 months. New battery's usually cost around $50.
Shopkeepers should not overcharge.You can't overcharge a battery.
You can but you can alos easily overcharge the battery.
Defective voltage regulator.
No, it will overcharge the 6 volt battery.
Overcharge, often due to a shorted cell.
No. The computer and charger are "intelligent" and will prevent overcharging.
Defective voltage regulator.
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.
Yes, as long as you do not overcharge it.
No, the iPhone 5c battery is not the same as the iPhone 4 battery. The iPhone 5c uses a different battery model with a higher capacity compared to the iPhone 4. Additionally, the physical dimensions and connectors of the batteries are also different, making them incompatible with each other.