06-10-2019 11:58 PM
I believed this may help someone.
I recently updated my system bios to the latest version on my Elitebook 840 g3. After which my battery stops charging at 79%. I calibrated my battery (automatic & manual) but still no solution. I finally changed the battery to a new one, to my surprise the charging still stopped at 79%. Then, i downgraded the bios to the last version in 2018 and the battery is charging very well.
System model: Elitebook 840 G3
System SKU: W0B14US#ABA
BIOS Version/Date: HP N75 Ver. 01.33, 17/07/2018
Solved! Go to Solution.
06-13-2019 06:41 AM
it's a new feature available in the BIOS.
You can press F10 during Power-on self test to enter BIOS setup.
this setting was introduced to extend battery life.
If your PC is connected to power outlet instead to charge until it gets 100% , it stops at 79%.
IF you don like this setting , you have to modify it.
The name of the option is Battery Health Manager
you have 3 possibilities, select of of them:
Maximize my battery health > in this case max charge is around 79/80%
Let HP manage my battery charging -> in this case HP check some battery parameters and decide to charge or 80% or 100%
Maximize my battery duration >in this case max charge is 100%