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I always keep my charger plugged-in and my battery remains fully charged. but sometimes when I restart my laptop it starts charging again and shows the battery is in it's 90's%. My question is should I leave the charger plugged-in so that it reaches 100% again or I plug-out the charger and use the battery to some level and then plug-in the charger?
In simple words, At which level should I recharge my laptop battery? Is it ok to plug-in the charger at 90% charge remaining?
Plug it in. Maybe windows doesn't know the real battery %... I've seen very recent windows tablet that wouldn't update the battery life properly. Turning them off when the battery's 100% charged, then waiting a few days (until the battery runs down a little, 20%-30%, plugging it in but not turning it "on" shows the battery graphic - like a cell phone - with the battery closer to half empty) and starting windows has windows thinking the battery's still at 99% or 95% and charging, but the battery % would go down while the battery actually charged, eventually the % would start going up again. – Xen2050 – 2016-11-20T07:54:56.743