After I upgraded Windows 7 to Windows 10 in my Samsung laptop, the AC charging stop at 80% and show "plugged in, not charging".   Then I downgraded back to Windows 7, problem still exists.  I have tried :   Shut down  Remove battery  Boot up on AC power  Uninstall the ACPI-Compliant Control Method Battery driver  Shut down  Reinsert battery  Reboot   Still cannot fix the problem. I am wondering whether it is a configuration problem?
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I have a samsung laptop and recently had a pop up message saying for battery to not completely charge to save battery life after doing this my battery does not completely charge. It charges to approx 50% but this does not allow me to use my computer for very long which is very frustrating, Anyone know how I can change the setting of my battery to go back to fully charge as I cannot seem to find anything in my battery options that allows me to do this.
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I'm using Windows 7 , I set my drive to sleep after 10 minutes and it works but, when I shut down windows my hard drive resume from sleep. Why? It shouldn't keep hard drive sleep and shut down the PC ?
32964
This is something I always wondered about: when I leave my charger plugged on the wall socket but not charging anything, is it still consuming energy?   Some notebook chargers have a led that is always on, so I guess it's consuming at least a bit. But what about Apple chargers? I want to leave my iPhone and iPad chargers always plugged under my desk (so I can just connect my device when I want to charge) but I'm worried they shouldn't be plugged all the time due to safety risks or phantom power consumption.  Is there any way to measure this to be sure?
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I work on a HP laptop plugged in most of the time, and after a few months the battery went off-duty.  Of course, I could remove the battery each time the laptop is plugged and replace it each time I must move to where no sockets are around. But I think that:   It would be really BORING! The computer would not avail itself of the useful backup power supply a battery can provide in case of black out.   It should simply switch off the battery charging when a safe power level is reached (i.e. 95%) and start recharging it, not every five minutes, but only under a certain safe threshold (i.e. 40% - 50%).  In its energy-saving profiles, Windows 7 only allows for setting up screen brightness, screen fadeout, screen deactivation and the suspension, not managing any charging issue.  Is there a way to accomplish this?
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I asked this question on Physics StackExchange but was advised to ask it here. When I charge me cell phone or notebook or whatever device what should I plug in first? Should I at first plug in usb charger to the AC wall outlet and only then to the cell phone or vice versa? What are the precise physical arguments for this? And are there any differencies at all? I think it is safer to plug in wall outlet first because of peak charge. Can someone give me a technical explanation? Thanks in advance.
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The problem I am experiencing is that if the battery is not present, the CPU is automatically throttled.  I have done some searching and have found that this is apparently by design, "in case the power supply cannot supply enough power, so the machine won't shut off."  Now, here is the problem.  I can't put the battery back in, because it started swelling up like crazy.  I can't really justify the cost of a new battery for a machine this old and I can't really afford a new computer, so I'm stuck with this machine.  It still works, but throttled back, a lot of things like flash video players are almost useless at the reduced CPU usage.  I don't really care if the machine shuts off if the supply can't keep up with power requirements.  My understanding is that this really should only happen if the supply is mismatched, i.e. from an adapter designed for a smaller machine, but even if its not it is just as intolerable to have to reload netflix every 30 seconds when it loses sync than an occasional power loss would be.  Besides, it is already losing power every time I need to move it somewhere.  So, what's the solution?  There has to be some way to override the throttling, right?  By the way, I have already tried sudo pmset -a dps 0 but that just gives me a usage message.
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I have a Samsung Galaxy player that has been giving me the message "Charging paused. Battery temperature too high or too low". I left it unplugged and powered down all night, and it still gave me the message as soon as I turned it on. The battery should be at room temperature. I've turned it off and on several times. I've tried removing the battery and putting it back. I have no idea what's wrong. It's been working fine for the past 9 months. Can anyone help?
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My laptop battery won't charge anymore, sits at 0%, and the laptop only operates if plugged to the AC adapter (it detects the power cord, but charge remains at 0%) The battery is already 2.5 years old, saw extensive use (at least daily recharge). so I wouldn't be surprised if it is damaged/beyond repair, but could it just be a software issue? I'm running Arch Linux.
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Sometimes my charger remains plugged into laptop even after charging is complete.  Is there a way to get a pop-up message/notification when my battery gets full due to charging or is there any software/package which can provide the functionality?
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I've heard about laptops such as the new Chromebooks that are charged via a wall charger that connects to a USB-C port. I'm quite happy that this will supposedly standardize laptop chargers but I'm a little unclear about how this works.   Existing USB ports provide a 5 volt source, but the laptop chargers provide up to 20 volts. is there some kind of higher voltage line or are the USB-C powered laptops running on a lower voltage?  All this information I've seen gives a fairly vague idea of providing more power, providing up to 100 watts rather than 10 watts. Even so, my laptop is not the most powerful machine and the charger still outputs fairly near 100 watts, I can imagine more chargers for power laptops providing much more than 100 watts. Could a general purpose USB-C charger really power all these machines?
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Can I charge computers by inducing 5-volt into their USB connectors? Is this possible? I noticed that when my EeePC 900 is off but plugged in charger, there is power coming out of the USB port. Can this be a sustainable way of charging a PC, or a flaw in design?
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First off I did try the power options setting and it's on 'Never' but that did nothing. The drive still spins down after 15-20 seconds of not being used. I need it to spin all the time because it's more efficient with my way of using it. Also listening to music from that drive is absolutely destroying the drive making it spin up and down all the time causing immense wear and tear. Any ideas on how to stop it from spinning down? Please don't suggest bat files that keep creating editing a file.  &nbsp;  Oh and here is the model of the drive: wdc wd10jpvx-22jc3t0 and my OS is Windows 10 64 bit.
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One of my friends has a relatively new Samsung smartphone. He has this app that notifies him whenever the charging is up to 80%, and tells him to unplug the charger.  He tells me that it will increase the number of charging cycles for his battery. He says that if he lets it charge all the way up to 100%, it will mean he has to replace the battery of the phone more often.  Is this true?  Somehow, I feel this is a thing of the past. I thought the internal architecture of batteries these days was made so that it wouldn't drop too low or too high. (In other words, when the phone is at 100%, it isn't really 100%. It's what the battery can safely be charged to in order not to degenerate too much.)  Here's a  which taught me something about this.
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Basically, I'm looking for some do's and don'ts. Is it bad to keep my laptop plugged in when I'm not using it (majority of the time)? Is it bad to plug it in once I've finished using it (with it having something like 30% or 70% life left)?     This question comes up often and the answers are usually the same. This post is meant to provide a definitive, canonical answer for this problem. Feel free to edit the answer to add additional details.
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I see that the question &quot;why is my MacBook not charging?&quot; gets asked a lot. The problem is, there are multiple reasons. Possible points of failure are: charger, cable, magsafe connector, DC input board, logic board, battery. (Have I missed any?). What is the best sequence for a user to follow, to diagnose the problem? By way of example, here are the first steps that I usually try:  Make sure the charger is working. Either use your charger on a different Mac, or test a spare charger with your Mac.  Check the connection. There might be gunk in your port that's stopping the connector from lying flat.  Try resetting the SMC and PRAM.  If the computer boots, run Coconut Battery to determine battery status.   This is where I get a bit stuck. For example, I have a machine here that boots fine when plugged in, but not from battery. Disconnecting the MagSafe causes the machine to switch off. Sounds like it's a dead battery, except that Coconut reports the battery as detected, in good condition, but not charging. What steps should I take next? Specifically, I'm asking for a generic algorithm to help determine the source of the fault (preferably without swapping out lots of components one by one)?
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I have made a solar panel charger, it consists of a 1.2 watt panel connected to a buck converter, then to the phone.  Now, when I connect it, it charges the phone and in the battery settings it shows it is charging as "plugged ac" and slow charging.  I wanted to test if it can slow down the discharge rate, so I came up with a test procedure where I:   Downloaded "battery drainer" app (which essentially turns on cpu stress, gps, vibrator, full brightness etc);   Measure the time it take for the phone to get to 90% from 100% with solar panel attached and without solar panel attached.   But the time it takes to discharge is almost the same. I am wondering what am I missing. Wouldn't the solar charging increase the discharge time?  When I measured the solar panel output it was 5 V and around 110 mA.   Thank you, any help will be appreciated.
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so I have a 2019 MacBook Pro 16&quot; on Catalina 10.15.5.  I recently got it back from the shop - upper case replacement for bad keyboard that included replacing the battery as part of the repair.  Now I've noticed that while its plugged in and 100% charge and I'm using it, the battery charge actually decreases.  For instance last night I opened it, it was plugged in at 100%. I used it to make an email and print a few pages for 15 minutes and the charge actually decreased to 93%.  The icon shows when plugged in. I have looked at  but Battery Health Management is not turned on so it seems to be something else in my case. How can I diagnose and solve this issue? PS: I'm using an OEM 96W power adapter.