Thursday, October 30, 2014

laptop - Battery plugged in, not charging


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This is a new battery and this gives the problem of Plugged In, Not Charging for the past two days. I have no clue as to why this is happening. Sometimes it does, sometimes it does not. Battery Wear is 8%.
Some times its status is Plugged In, Charging
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If someone could please help me diagnose this.


Answer



This is not a defect or a problem. Your battery firmware or software driver is probably configured to forego charging when the battery is very near to 100%, to save on charge cycles. Rechargeable batteries have a limited lifespan, and repeated charging can shorten it. Charging the battery also heats it up, which can shorten its lifespan. The firmware is just trying to protect you from these and increase the lifespan of the battery.


If this situation is unfamiliar to you, then it is likely that you have used devices in the past which report false charge levels to the user. For example, some devices will say that they are "100%" charged, even though the battery's theoretical maximum capacity has not been completely filled up. This user interface trick is sometimes used to prevent consumers from being concerned by exactly the symptoms of a non-problem which you are seeing.


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