No matter what I do, it always show 3.8wh in both windows and ubuntu. Since both OS have this problem, i don’t think it’s OS’s related. i reset bios setting to default but the issue persists…
Battery life seems OK,though. after 3 hours of web browsing and reply email in ubuntu budgie, i still had 73% battery.
Thanks for your advice, since the battery is working fine, it can last many hours on ubuntu budgie, basically battery life hasn’t change. Therefore I don’t think i will spend money for a new one until battery life starts to get shorten.