Battery icon- If your are using laptop so some problem coming if the your battery icon disable so you can how to solve this problem.
First you have checked the disable icon of battery on your laptop so you go to device manger
After click the device manage see the above image then you go to battery option as above image
1. Microsoft AC adapter- right click or select disable device
2. Microsoft AC PI- compliant control method battery- also select the disable device
Now both are disable the click here on serial number 3 as per given on picture then doing serial number-1 will be enable then again you enable to serial number 3. so complete all produce then restart computer now your show the battery icon on laptop and computer.
I hope you are understand how to solve this type of problem of battery icon disable.