If you’ve had a laptop for a while, you may have noticed a rather annoying trend: Windows has lost touch with your battery. Perhaps it’s telling you you’re at 30% then abruptly switching off without warning, or giving you absolutely spurious time remaining readings. This isn’t necessarily an indicator that Windows is overestimating or going mad. It’s usually related to the battery itself; over time, even if you’re scrupulously careful, the amount of charge your battery can hold will decrease. But Windows won’t always keep up — it presumes your battery is as fresh and sprightly as it was when your laptop was new. Luckily, there is a solution. We need to teach Windows about your battery in its current state, calibrating its expectations with reality. It’s easy to do, but you’ll need a bit of time. Here’s how to show Windows that your battery isn’t as new as the day you bought it. Many manufacturers include tools for battery calibration among their pre-installed software.

It’s quite possible you’ve completely missed this (I certainly tend to ignore pre-installed apps), but have a look through — your laptop’s manufacturer will know more about your battery than Windows does, and running the recommended app should net you the best possible results. Alternatively, calibrating manually is a very straightforward process. You’ll need to start by filling your battery up to the brim with power, so plug in your laptop and allow the battery to charge. Trained Labs For Sale In VirginiaOnce it’s at 100%, leave your machine plugged in for another couple of hours to allow the battery to cool after charging, as heat can slightly alter your results.Great Dane Puppies For Sale Northern California On Windows 7, just type power settings into the search bar on the Start menu and hit Enter, or right-click the charging icon on your Taskbar and choose ‘Power Options’. Wwe T-Shirt In Malaysia

Select Balanced and click ‘Edit plan settings’, then make a note of what each of the boxes under ‘On battery’ is set to. Change them to Never and click ‘Change advanced power settings’. We want the battery to keep working as long as it can. Scroll to ‘Battery’ in the list, expand ‘Critical battery action’, and ensure it’s set to ‘Hibernate’. Check ‘Low battery action’ and make sure both of its options are set to ‘Nothing’, then expand ‘Critical battery level’. We’ll choose 5 per cent here, which should give your machine enough power to enter its hibernation state. Click OK on the Power Options window, then select ‘Save changes’ on the Plan Settings window, and you’re ready to discharge your battery. Just unplug your laptop and continue using it normally, or leave it switched on to discharge. If you’ve set up Windows correctly, it won’t enter sleep mode and the screen won’t turn off. It will then hibernate at the battery’s lowest level.

You’ll now need to wait a while for your battery to settle (we’d recommend at least five hours, so leaving it overnight might be a good bet) before plugging it back in and charging back to full power. You can switch on and use your computer during this process, because the key step has been done: teaching Windows how long it takes to go from fully charged to completely empty. If you want to get the most out of your battery, change your power settings back to how they were before the calibration process, or better. You might want to switch the screen off sooner when your laptop is running, for example, and send your computer to sleep after 10 minutes to conserve power when you step away from the keyboard, but it’s up to you. It’s taken many hours — depending on the state of your battery, and the power of your laptop, it might have been nearly a day — but Windows should now have a proper idea of the capacity of your laptop’s battery. As it ages, though, it might lose touch again, so repeat the process as and when it seems like you’re not getting the correct report of the battery percentage remaining.

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks. Windows 7 Help Forums Windows 7: Laptop does not recognize non-OEM replacement battery Laptop does not recognize non-OEM replacement battery Good day to you all and thank you for the opportunity to join your online community. The following text is the culmination of information from a failed attempt to get qualified advice via the Yahoo Answers route. This is why the text is not in a strictly narrative form. I thought it best to provide the accumulated data as is: I recently purchased a replacement battery for my Acer laptop (Acer Aspire 7740-5029). The battery is not a "manufacturer" replacement battery, but is of third-party manufacture. When I turn on my laptop (windows 7 HP 64bit), the laptop does not recognize that the [new] battery is inserted, even though the new battery is inserted.

The laptop does function with the replacement battery, but it does not report to Windows the remaining charge, or even that the battery is even there. So, this being the case, I have no idea of the charge/time remaining as I use the laptop and is of no use to me because of that fact. *The factory battery (OEM) is a Sanyo AS07B31 (lithium Ion, 4400mAh, 48Wh, 10.8V, 6 cell). *The replacement battery is a Famis FAM18674 (Lithium Ion, 5200mAh, 49Wh, 14.8V, 8 cell) For anyone who advises that I seek out and download/update drivers for the new battery, I cannot "download the driver", since in the Device Manager does not even recognize the new battery as being there as an unknown device or otherwise. I cannot update or install a driver for device that Windows doesn't know is even there. One other person has submitted that the original battery that came withthe laptop contained DRM electronics, so that one cannot replace the OEM battery with a non OEM model. The battery status/plugged-in status icon is on the taskbar and is not hidden.

I have always had my taskbar set up to show all icons and to hide none of them. With the laptop not plugged into the AC and the new battery in place, the only icon that is showing is the "no battery detected" icon. Even though the laptop is drawing power from the battery, Windows does not "see" that there is a battery and therefore cannot provide battery usage/time remaining, etc. I do very much thank you for your time in reading through this jumble of information and I do most heartily thank you in advance for any advice or commentary you may have to offer. Quote: Originally Posted by pdw98 There is your problem right there. The voltage must be the same to be a replacement battery for your laptop. [My commentary on each of the seller's advice is emboldened]: [I have done this. Flashed the BIOS from v1.15 to the latest v 1.27] [I am in the process of doing this. I will update as I progress this task] Update: The new battery seems to not be able to hold a charge now.

Perhaps a defective battery? Perhaps the OEM AC adapter cannot supply the higher capacity battery with enough power to hold a charge? [Connector works properly with the OEM battery and the newer OEM battery as well] [The AC power connector is OEM and is rated at 65w. Could this be an issue?] [This advice I didn't comprehend very well. Is it just me?] [I have directly observed that this particular advice does not apply to my AC adapter] Hi, I followed your instructions and it works except for one small problem - When my Gf's Lenovo 3000 V100 wakes from sleep or hibernation, I have to start all over again - Do you have a solution for this? I have searched up and down the net for a solution - until now I have had to disable the sleep/hibernation feature. I tried updating bios and drivers, SFC /Scannow, and most of the tips I could find online. Hope you can help Similar help and support threads Help please selecting a Win7 laptop replacement battery