98% plugged in, not charging

Question

I just purchased a new laptop Asus which has Windows 10, my concern is the battery meter showed a 100% charge in the first 6 days, and when laptop is plugged in to the mains and continuously used ( for approx 8-9 hours a day) i could see this message when i keep my mouse over the battery icon i get this notification "98% available (plugged in, not charging)" what does this mean? is there a problem with my computer?

Solution

Some laptops won't charge the battery back to 100% until it falls below a certain threshold, e.g 95%. This is to prevent unnecessary charging that would reduce the battery's lifespan, since batteries constantly self discharge.

Try using the laptop on battery for 30 mins or so to discharge it a bit then plug it in to see if it charges up to 100%.

Also, you may want to check the BIOS to see if there are any options for battery charging management as some laptops have very specific behaviour that can be configured.

Comments

[Admin]

When you charge a phone to 100% and keep it plugged in, most phones will lie to you and keep showing 100%, even though it is actually going through a short 2-5% charge-discharge cycle, so that the battery is not always charging. Windows 10, on the other hand, appears not to lie to you. It reports the true percentage of the battery, at the risk of confusing users. My Surface Pro 3 is showing "95% available, not charging", even though it's plugged in, but sometimes it does actually show 100%.