Aspire A515-57 Battery is sometimes charging over recommended 80%

Serviceman

In the Acer Care Center I have battery charge limit to 80% and mostly it keeps fine. The computer is mostly line powered and sometimes I see the battery is for no reason suddenly on say 94% or something like that. So I have to discharge it under 80% and it keeps fine this level another say month, but then again… Why it happens?

Puraw

https://community.acer.com/en/discussion/686238/aspire-a515-57-battery-is-sometimes-charging-over-recommended-80

Acer Care Center can cause issues in Windows11, browse this forum, last month for posts about ACC. You don't need it just disable all options or uninstall ACC. About your 80% battery limiting question: Don't limit your battery as it interferes with BIOS and Microsoft ACPI battery control protocol. Let the battery charge 100% and leave your laptop plugged-in 24/7, no problem, Smart logic in the battery will divert power directly to the MOBO after the battery is fully charged. The story about battery longevity when charging between 40-80% is a myth, never been tested, you can forget about it. If you never registered a full charge cycle, recommended by all battery manufacturers, do it now: Drain the battery till the laptop turns off (hibernates) and plug-in the adapter, charge till the amber charge LED turns blue and boot to Windows. Create a Battery Report to check the full Charge Capacity, this is aways a bit lower than the Design Capacity, if higher you need to uninstall the 2 battery drivers with Device manager and reboot. Battery wear runs around 10-15%/year. You should get 4-5 hours work out of a fully charged new battery using the balanced power plan, no 3-4K videos, no heavy games. To calculate battery wear, use the initial Full Charge capacity taken from the battery report, not this fictive Design Capacity as that is just an inflated (sales) number entered by the vendors in the Smart memory (not measured).

Puraw

https://community.acer.com/en/discussion/686238/aspire-a515-57-battery-is-sometimes-charging-over-recommended-80

Acer Care Center can cause issues in Windows11, browse this forum, last month for posts about ACC. You don't need it just disable all options or uninstall ACC. About your 80% battery limiting question: Don't limit your battery as it interferes with BIOS and Microsoft ACPI battery control protocol. Let the battery charge 100% and leave your laptop plugged-in 24/7, no problem, Smart logic in the battery will divert power directly to the MOBO after the battery is fully charged. The story about battery longevity when charging between 40-80% is a myth, never been tested, you can forget about it. If you never registered a full charge cycle, recommended by all battery manufacturers, do it now: Drain the battery till the laptop turns off (hibernates) and plug-in the adapter, charge till the amber charge LED turns blue and boot to Windows. Create a Battery Report to check the full Charge Capacity, this is aways a bit lower than the Design Capacity, if higher you need to uninstall the 2 battery drivers with Device manager and reboot. Battery wear runs around 10-15%/year. You should get 4-5 hours work out of a fully charged new battery using the balanced power plan, no 3-4K videos, no heavy games. To calculate battery wear, use the initial Full Charge capacity taken from the battery report, not this fictive Design Capacity as that is just an inflated (sales) number entered by the vendors in the Smart memory (not measured).

eGomes

Same issue here! Acer Care Center (ACCStd process) also takes long time to startup, which demonstrates the poor implementation of this feature by Acer. I believe that battery limit charge should have been implemented through an option via UEFI / EC firmware, as other manufacturers have done.