That usually means the battery is dead or a software problem. If it's a software problem try resetting the phone by holding the power key, home button & the up volume rocker at the same time for 20 seconds. Beware if you choose factory reset you'll lose all your data. If that doesn't work get your battery replaced.
Sorry!
All of the dialer icons have fallen on the floor and can't get up.
Some day can you please tell us who MAKES your phone AND your Model number?
Anthony
-Not sure but here how to test.
Put on the charger for 1-2 hours then unplug it and use it.
You should be able to see the battery level. This is telling you that it take charge or not.
-If it still very low or same as before charge then the battery might be defect. Replace new battery.
Good luck
Mai