There is an x on my battery icon..What does this mean?

I agree with Tom, you probably need to change the battery.
Don't forget that with modern rechargeable batteries, particularly in computers, phones and the like, it is not good to leave them plugged in to the charger all the time. This definitely reduces the life of the battery. Try a new battery, charge it up and then unplug the charger.

I know it's a bit more bother, it means having the charger ready to plug in when the battery alert light comes on, then unplugging it again when full. If you get into the habit, it is well worth it, given the price of batteries!

Try a different battery charger.
Maybe you are using a battery charger of a phone.
They have the same plug but different Amperage.
Usually tablets have more powerful battery charger than phones (2.1A instead of 0.5/1A).

The battery charger that you are currently using seems to have enough power just to keep your tablet alive, but not enough to charge it.

You can check on the data written on the battery charger's body the maximum amperage.

That symbol usually indicates the battery isn't charged or charging. It could be a connection problem, a charger problem, or a battery problem.

If you have an extra wall charger, try that first as they don't always last forever. Make sure the plug that connects to your tablet looks clean and not corroded.

If it still won't charge, then chances are the battery needs servicing to make sure the connection is OK or the battery just might need to be replaced.

Here's a possibility, I just plugged in my Kindle Paperwhite using the Kindle charger and USB cable. It wouldn't charge.
I kept it plugged in all afternoon and it accepted no charge although it showed the little lightning bolt on the icon suggesting it was charging.

I unplugged the charger (it has two prongs) and reversed it so
the logo was on top and, Lo and Behold it charged. It could be the plug is not omniidirectional (i.e. it is polarized)

Depends upon exactly what's happening.

• When you plug in your charger, does it try to charge the Tablet? ie Does the Charging icon come on the screen briefly when the charger is plugged in with the Tablet turned off, or does the little charging 'lightning' symbol come onto the battery icon on the home screen when the Tablet is running?

• I assume the battery has gone flat, but will the Tablet turn on when the charger is connected?

If the charging icon comes on, and/or the tablet will run on the charger, then both the charger and the charge port connection on the Tablet are OK, and the most probable cause of failure is the internal battery which will need to be replaced.

However, If neither the icon comes on nor the Tablet runs on the charger, then either the charger has died, or the plug/socket on the Tablet where it connects is faulty. The most likely cause is that the charger has died and will neeed to be replaced

There is a slight chance that the internal charging circuits in the Tablet may have developed a fault, but that is highly unlikely {:o)

chage battery in ur tab by an expert professional

Is it turned on when in charger. May need to be turned off before you plug it into charger Then it should show a battery icon on screen showing it is charging ..

Lightning Strike Symbol means that the battery is charging.
If it is shown even when it is not charging then your charging circuit needs to repaired. Just replace the charging IC not a very high cost. Might cost around 5-10USD.

Connection on tablet from charger to battery is not being made and that is why it is not charging in one unit but charging in other. Till problem is resolved charge battery in other working unit.

This is about Gateway M275 battery not chargering problem.