no, not at all i always keep mine plugged in
When using a laptop leaving it plugged in when the battery is fully charged does do some slight damage to the battery life. However this is minium but if you do thiscosistantly you will notice your battery does not last as long. Good question
No
No, charging your tablet device while working or using it does not damage it. However, excessive charging of your electronics can impact your battery life.
No
It is a good thing to disconnect the negative battery cable when charging, so no damage can occur to the car's computers.
Yes it will damage the power and have less battery life.
if its not charging make sure all your connection are plugged, simple way too test your alt. is start the car remove the pos+ive terminal and see if it still runs if not bad alt. and you will need it replaced. This procedure is not recommended. It can damage a good alternator.
No damage. As the vehicle's charging system charges the battery the water turns to acid. No worries.
Whether you have just started using your iPod or are looking to make the battery last longer than normal, consider the following tips: Charge the battery only when it runs out. Charging it too much can actually result in a shorter battery life. Keep your iPod at room temperature. Leaving your iPod out in the cold can damage it. Turn off your iPod when unattended, as leaving it on can quickly drain the battery.
Your charging system is not working. It could be the Alternator or the regulator or both. It's not a good idea to test the charging system by removing a battery cable while engine is running, this can damage the charging system.
Can You Charge...Yes. As a matter of fact, in order to charge a battery, the charging voltage HAS to be greater than the charged battery's voltage or no current will flow and charging cannot happen.Of course, the charging voltage cannot be excessive, or damage to the battery being charged will result.In your question, 4.6 volts is not excessive for a 4.2 volt battery.
This should not damage the laptop at all, they are designed to be turned on at any time. (Unless of course the battery is dead.)