Solved Samsung laptop says battery 80% full but not

July 17, 2011 at 11:31:28
Specs: Windows 7

Samsung laptop says battery is 80% plugged in but not charging. I have it on power save mode

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✔ Best Answer
October 18, 2011 at 08:05:32

Samsung laptop with Windows 7. Now I vaguely recall some time back being prompted and went to the 80% setting but couldn’t figure how to undo. After trying all of the suggestions that people said regarding the Device Manager and Power Plan options. Battery in, battery out, AC in, AC out, Restart here, there... I tried all the combinations found on all the boards and the best solution only worked for a minute or two, then the system would automatically reload the Microsoft ACPI-Compliant Control Battery Method and back to “80%, not charging.” The solution wasn’t Windows and is so much simpler than that...

Go into Start, Programs then Samsung folder. The first item in the list is Battery Life Extender. There are two modes, one that charges the battery to 100% and another that is to extend the battery life by only charging to 80% (said to be better if laptop is plugged in most of the time). I put it back on the 100% setting and problem permanently solved. I would imagine if you’re having this exact problem that other manufacturers probably have the same kind of settings.


#1
July 17, 2011 at 12:49:27

If you always use the adapter that is normal. Run the computer on batteries down to 50% then recharge.

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#2
July 17, 2011 at 12:50:05

this might work,
leave your laptop running on battery power only until it shuts down, then then turn it back on until it shuts down again. now plug the mains in and let it fully charge.

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#3
July 17, 2011 at 15:12:07

Good suggestions, but 50% is probably not low enough to really help, but a low battery warning should be enough. If deep cycling your battery does not help (do this 2 or 3 times), try borrowing a charge cord from someone who has a similar system to see if your charge cord needs replacing (putting out lower than normal voltage). If theirs works then yours needs replacing, if it does not then your battery is going. When a battery charges its voltage rises, when its voltage reaches the output of the charger it will stop charging, therefore always reaching the 80% charge level is the clue here.

You have to be a little bit crazy to keep you from going insane.


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#4
July 17, 2011 at 21:48:31

Thanks for all your reply's. I will try running the laptop on just battery to let it drain down before charging on power again & see if this works. I have managed to find out that apparently 'Samsung' which is my make has 2 battery charges, if you have it on extend battery life if mostly plugged in then it only charges to 80% so this solves my 80% problem. I still didn't understand why it says not charging when plugged in but I will try draining it down & fingers crossed it will solve the charging problem. So many people seem to have this problem I have found from searching other posts & not all Samsung but maybe other makes have the same facility, only discovered this from searching other forums today! Thanks again I will update when tried.

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#5
July 18, 2011 at 15:15:53

Okay!
1. Drain the battery down completely like suggested by everyone else and make sure you do it at least once a month.
2. Disconnect battery and reconnect it
3. As far as about the battery charge being at 80% is concerned, let me tell you that its a good feature of your laptop that it charges to 80% and then stops charging if on extend mode and it says not charging as it stops charging and moves to direct power from adaptor/charger.

You may wanna contact Samsung about it if this doesn't really help you. Also, get in touch with them and ask them about the battery modes and how to change them.

FYI
Also all recent laptops have facility to stop charging when full and move to direct power from adaptor/charger (in your case, charge till 80% as its in extend mode).


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#6
October 18, 2011 at 08:05:32
✔ Best Answer

Samsung laptop with Windows 7. Now I vaguely recall some time back being prompted and went to the 80% setting but couldn’t figure how to undo. After trying all of the suggestions that people said regarding the Device Manager and Power Plan options. Battery in, battery out, AC in, AC out, Restart here, there... I tried all the combinations found on all the boards and the best solution only worked for a minute or two, then the system would automatically reload the Microsoft ACPI-Compliant Control Battery Method and back to “80%, not charging.” The solution wasn’t Windows and is so much simpler than that...

Go into Start, Programs then Samsung folder. The first item in the list is Battery Life Extender. There are two modes, one that charges the battery to 100% and another that is to extend the battery life by only charging to 80% (said to be better if laptop is plugged in most of the time). I put it back on the 100% setting and problem permanently solved. I would imagine if you’re having this exact problem that other manufacturers probably have the same kind of settings.

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#7
October 18, 2011 at 15:20:34

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