TechTablets › Forums › Jumper Discussion › EZBook series › JUMPER EZBOOK 3 battery won't charge up to 100% › Reply To: JUMPER EZBOOK 3 battery won't charge up to 100%
I doubt it will fix it since the charger is just a very simple power supply. You should measure your voltage. If it is less than 12V the charger might be the issue. If it is 12V replacing the charger won’t help.
Another thing you could try to calibrate the battery is to let it run to 0%. And I don’t mean on Windows, since it shuts off before the battery is completely empty. Start the UEFI menu and let it run empty in there. You could also try restoring the UEFI factory defaults just to make sure some setting in there isn’t screwed up.
If all of this doesn’t fix the problem, there likely is no way to do so. But really, the battery life of the EZBook 3 is awesome so the few percent missing won’t have a big impact on battery life. If the battery really is charged to 82% and it’s not just a screwed up display, it might also extend battery longevity.

