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Usually, when a battery doesnt detect its either a defective battery, or the battery is just no good. Consider replacing the battery. That would be the only solution for fixing that. batteries are not made to last long on a laptop 1-2 years the most if lucky getting that. if you leave the laptop plugged in all the time you have to remember that it is charging all the time, if you feel the laptop getting hot, then the damage is done. good Luck and try to find an OEM or something similiar Steer away from knock-off's
Is the replacement battery of the same spec? Some inexpensive battery do not have that correct pins to ID the battery. Try to unplug, remove battery read the specs and post. replace battery, could be that it's not in all the way, and reboot. Does it show after a reboot? Is the charge light on? The win 7 OS isn't showing a battery present?
the wattage of the ac adapter you're using is different from the required wattage of your computer. this happens when you use a different charger or the charger had not been cared for well.
OK, it sounds like the acer aspire one 751 has a bad battery that will need to be replaced. It is not taking a charge, so it is not detected even though it is connected to the laptop. The 'plugged in' message shows that the charger is connected and detected by the computer, but the battery is 'not charging' due to the bad cells.
Looks to me like the battery is bad, try another battery if you can and see if the laptop charges it. If it does then the battery is bad, if it doesn't then its something with the motherboard.
I am sorry to say you maybe buy a wrong replacement battery that cann't compatible with the original laptop battery pack at all,this laptop replacement battery is still rare in the market now.Wish this page will help you anyway. http://www.power-battery.co.uk
If the battery is not detected in the BIOS (F2 at boot) and doesn't show as charging, then return the battery and get a replacement.
If neither the original battery or the new replacement battery are not detected in the bios a problem with the motherboard may exist. If still under warranty, contact Dell Support for a repair, if not, then you may be investing in a new motherboard
Does the computer work when plugged into the power supply? If not the power supply may be the problem. If it does then I would suspect the battery has gone bad.
Lithium Ion batteries aren't something that you can really calibrate unless the laptop has a utility in the bios to do so (ASUS laptops). You either have a motherboard related malfunction in reporting the battery life as you say it does report in another laptop, or you need to update the ACPI driver which you can get from the manufacturer's website.
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