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Did I overcharge my laptop's battery?


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#1 Psyga315

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Posted 08 December 2015 - 09:30 AM

Alright, so I have a Dell Laptop running on Windows 10 and last night I forgot to unplug the charger upon shutting it off. When I turned it back on, I unplugged the charger, I'm greeted with an absurdly long time battery lifespan. Did I overcharge the battery? Is it going to be stuck at 100% then suddenly it becomes 25%? Is it simply nothing for me to worry about and that it'll balance itself out?

 

Attached is the amount of time that the laptop is telling me and the battery information from Dell's Power Manager.

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#2 Captain_Chicken

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Posted 08 December 2015 - 09:56 PM

What model of laptop is this? It appears your battery is failing.

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#3 Psyga315

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Posted 08 December 2015 - 10:02 PM

What model of laptop is this? It appears your battery is failing.

Not sure, but I managed to fix it by shutting off my computer and pulling the battery out, then putting it back in. It's now back to normal.

 

EDIT: Inspiron 5558


Edited by Psyga315, 08 December 2015 - 10:37 PM.


#4 Chris Cosgrove

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Posted 09 December 2015 - 06:52 PM

I think you are worrying needlessly. Leaving a charger connected overnight is not going to do your battery any noticeable harm at all.

 

Ideally, you should disconnect the charger once the battery is fully charged, but if bedtime comes first - then go to bed !  Keeping the battery on charge continuously will shorten battery life, or so the supplier of a spare battery informed me once. He also said that once the battery is charged you should run the laptop on the battery until you get the low voltage warning and then plug the charger back in but don't worry about one night.

 

Further, unless Captain Chicken, at #2, saw something in your images that I didn't, I don't think you have a potential battery problem. Your second image shows "Battery health: excellent."

 

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#5 Psyga315

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Posted 09 December 2015 - 09:42 PM

I think you are worrying needlessly. Leaving a charger connected overnight is not going to do your battery any noticeable harm at all.

 

Ideally, you should disconnect the charger once the battery is fully charged, but if bedtime comes first - then go to bed !  Keeping the battery on charge continuously will shorten battery life, or so the supplier of a spare battery informed me once. He also said that once the battery is charged you should run the laptop on the battery until you get the low voltage warning and then plug the charger back in but don't worry about one night.

 

Further, unless Captain Chicken, at #2, saw something in your images that I didn't, I don't think you have a potential battery problem. Your second image shows "Battery health: excellent."

 

Chris Cosgrove

To be fair, I wasn't exactly worried. I think it's because the last laptop I had got an extremely old battery (it was an Apple Laptop from I think 10 years ago) and how most of the items I have with batteries are hand-me-downs that suffer from overcharge or have old batteries.

 

I'm well aware of how batteries are now advanced enough to shut off the charging process when they are fully charged. But seeing the amount of time made me confused, and in the process, yes, worried. I came over to here to find out if there was anything remotely wrong with the battery, but I managed to fix the problem.

 

And yes, I do tend to charge the battery once it hits 25%, some times a little earlier. I'll try not to sweat over one night and be sure to charge only when it needs it. Thank you.






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