USB devices take power from the device they are plugged into to operate. The message is a warning warning suggesting you unplug the USB devices to conserve the power of the tablet's battery.
No.
Please rephrase your question as it really makes no sense.
Leaving something on (like headlights) for an extended amount of time without the engine running will shorten the life span of the battery unless the battery is the deep cycle type. Overcharging an automotive battery will also shorten its life span.
No, a magnet will not affect a battery.
You will shorten the life of the battery. Only add Distilled water to a battery.
If the battery is not a deep cycle battery, allowing the battery to run down dead multiple times will shorten its life span.
Do you have an Xbox controller that can be plugged into the front of the console to charge the battery? This does not work for AA batteries, but only for the official batteries that only work in the controllers. If you are using this recharging system, make sure that you do not overcharge the battery. You need to disconnect it when it is done charging, as indicated by the lights. Leaving it on for too long is very bad for the battery itself, causing it to wear out or even overheat, so overcharging can shorten the battery's total lifespan.
On an automobile battery it sure does. Each time the battery is discharged the life is shortened. On a deed cell marine or golf cart battery this is not the case.
This can reduce the life of the power adapter.The main problem with leaving the adaptor plugged into a laptop and power is it can shorten the battery life.This is especially true if your laptop has a Ni Cad battery.When you require the battery for 1 to 2 hours, it may only give you less than 15 minutes.While Lithium batteries are less prone to these problems, their life can still be reduced.If the laptop is going to be plugged in for extended periods of time, remove the battery.Once a month disconnect the laptop from the power and place the battery back into it.Run the laptop on the battery until you get a warning low battery beep.Connect the power back up to the laptop and let it charge overnight.Remove the battery the next day and leave it out until the next month or until you need to use your laptop without a power connection - whichever comes first.Follow this procedure and your battery should last 3 to 5 years.If you do not and leave your laptop connected to the power continuously, your battery will likely last 2 to 3 years at the most.Sources: General Knowledge
Yes...it will not have the same capacity afterwards. Yes. Everytime you run an auto battery down completely you shorten the life of the battery. It is not designed to be run flat as a deep cell battery is.
Yes, If a battery is allowed to go dead numerous timesit will shorten its life expectancy
Average life is from 3-5 years, assuming the battery is never run flat which will shorten it's life.