I am using Acer Nitro AN515-53 laptop. Its been almost 2 years since the laptop was purchased. Everything was good till last friday (23/07/2021). My laptop just shuts down automatically without any warning at around 38 - 41% battery(as indicated when hovered over battery icon in taskbar). Afterwards it won't turn back on until I switch on the laptop charger. After connecting to charger and turning on laptop, I hovered over the battery icon, it says 44% remaining and charging. I tried manual battery re-calibration as found on internet. It didn't help. There is no battery calibration for my laptop in acer care center, hence cannot do that. But when I checked my battery health via acer care center, it says good. Till now laptop works good but shuts down at 40% and then resumes charging from 40%of battery. Kindly help me with this problem.
Thread was edited to add model name to the title