Question HP 640 probook won't work off battery only mains

Mar 15, 2021
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I have a HP probook 640 i dropped it yesterday and now it only works off the mains.
this is what i have tried already:
  1. I Have removed battery and put it back in nothing changed still didnt work
  2. I have gone into "Device Manager." Under Batteries, and uninstalled Microsoft ACPI Compliant Control Method Battery and reinstalled - still didnt work ,
  3. i have also Update the Driver’s
  4. i have also updated the BIOS
  5. i have put in another battery and still it wont work off the battery only the mains
The battery was 79% and since its been on the mains it has charged to 100% so the battery is charging .
 
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