raymac46 Posted March 19, 2016 Share Posted March 19, 2016 So I have this crappy old Acer netbook I'm going to upgrade a bit - mainly to get some experience with servicing a laptop. In the meantime I was faced with the problem that the battery would not charge. Two days on the adapter and it was still flashing lights and showing zero capacity. I figured it was a dead battery for sure. However in looking stuff up on the Acer support site I found a possible cause and solution. Wait for it - you have to upgrade the BIOS. I was skeptical but it only took a few minutes to download the BIOS upgrade, put it on a USB stick and flash it. After that the battery light glowed steadily and the battery started charging. Within an hour it was back to full capacity. Why this works I have no idea. Yesterday's weird finding. Quote Link to comment Share on other sites More sharing options...
securitybreach Posted March 19, 2016 Share Posted March 19, 2016 It must be a bug in the bios that incorrectly reports the battery level but I do not know why/how it would just magically start doing this.. 1 Quote Link to comment Share on other sites More sharing options...
V.T. Eric Layton Posted March 19, 2016 Share Posted March 19, 2016 Why this works I have no idea. Yesterday's weird finding. BIOS may control internal hardware regulation of charge voltage... just a guess, though. 1 Quote Link to comment Share on other sites More sharing options...
Guest LilBambi Posted March 23, 2016 Share Posted March 23, 2016 There are some BIOSes that actually can reset battery status, usually with a process, not just with an upgrade to BIOS. That does sound like a BIOS glitch that got fixed maybe? Quote Link to comment Share on other sites More sharing options...
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