Iget a battery with an exclamation point in the center. What does it mean and how do I fix it

That exclamation mark means the battery is bad or has a bad connection inside the device. If your battery is user-serviceable you could try removing the back of the device and checking the connection for corrosion or looseness. Depending on how old your device is, it just might be time for a new battery.

You must open each email and resend it.

A red exclamation point means there was a problem with sending your email. You can click on the mark to see further information about the problem. Most likely, you will have to check you email settings and correct the problem. You can, alternately, delete that account and create a totally new version of that account. The most likely error is entering the password incorrectly. Depending on who your email provider is, you may, instead, have incorrect outgoing email information. You would have to check with your provider to determine the correct settings.

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I'm guessing(bad charger?) Try another charger.

Bad battery communication--the tablet can't read battery status. Could be a bad connection or a failing battery.

Can mean the battery isn't communicating its status to the tablet--failing battery, bad connection, etc. Talk to tech support for a replacement if it's still under warranty. If it's not and you can still charge it to 100%, hang on and hope for the best.

Well it is pretty much telling you that it needs replaced. Try z-batery.com for unbelievably low prices on all types of batteries. Hope this helps, plese post solved on fixya.com.So I get credit for a solved problem if it does. If not, check back and give me more info

Can the tablet turn when plug in to ac adapter/ home wall charger?
Maybe I can help you if you can tell me the model of your tablet.
EZBUY batteries and chargers laptop batteries

The exclamation mark means that your tablet has no battery left. You should try plugging your tablet in for a few hours before turning it on (if it doesn't turn on by itself.) If that doesn't work and you still see the exclamation mark, I suggest that you ensure the charger is properly plugged in to the socket and that its properly attached to the tablet.