I have a Lenovo Z710 with Windows 10. A couple weeks ago my computer started giving me a "plugged in but not charging" notification. When it is plugged in, sometimes it charges and other times it does not, and it will (seemingly) randomly stop charging after a time. When I see it is not charging I pull the A/C plug out and put it back in and most times it will start charging again. I sometimes have to do that a couple times before it works. When I have the computer on my lap it seems to stop charging more often than if I have it setting on the table, and thus not moving around. When I leave the computer alone, most times it will charge the battery, though lately I have only seen it get up to "1 min. until fully charged" but never actually get to fully charged. When I unplug the A/C and use the battery is discharges normally (i.e. it doesn't drain super fast or jump around in how much charge it has left.) When I took out the battery and only had it plugged in it worked fine for a few minutes and then shut off. Now this is the really strange part to me, when I have it plugged in and it is not charging it drains the battery and goes into hibernation when it gets down to the 5% mark or whatever I have it set at. So even though it is plugged in, and recognizes that it is plugged in (the screen brightness is higher and the battery indicator in the tray says plugged in) it is still using the battery to power the computer instead of the A/C power and shutting down as if it were on battery power.
I have tried uninstalling the battery stuff in device manager and that did not help.
So, my question is, what is most likely causing this problem? Is it the battery, the power board, or the battery switch board? My guess is the battery switch board, but I wanted to get some other opinions before I start ordering parts and opening the computer. I thought I might just try a new battery and could have an extra around if it happens to not be the battery, but I'm leaning against it being the battery.
I have tried uninstalling the battery stuff in device manager and that did not help.
So, my question is, what is most likely causing this problem? Is it the battery, the power board, or the battery switch board? My guess is the battery switch board, but I wanted to get some other opinions before I start ordering parts and opening the computer. I thought I might just try a new battery and could have an extra around if it happens to not be the battery, but I'm leaning against it being the battery.