No, but it is good practise to fully discharge and then fully charge up your iPad on a regular basis to maximize battery life.
No apple products and new phones stop charging when fully charged.
I think the only damage you can do is unplugging it before it is fully charged
Take the battery out.
When it is charging the screen reads: Battery Charging. When it is fully charged it reads: Battery Charged.
Not likely, but running the engine with a dead battery can damage some alternators. Always fully charge the battery when installing an alternator.
Laptops that's battery is fully charged does not weigh any more or less than one that's battery is not fully charged. If there is a difference, it would be so small you would not be able to tell.
A fully charged 12 volt automotive battery should have 12.68 volts.
where the battery bar is..it will be fully green
12v
It varies by manufacturer and battery.
A fully charged 12 volt battery will read about 12.6 volts, or 2.1 volts per cell.
No
Phone off: Your phone will show a full battery and say "Fully Charged" Phone on: on the right top corner your battery will show a full battery and blink