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Dell XPS 15 Battery Meter Inacurate. HELP!!! :(

by milkjunkie90 / May 7, 2013 6:47 AM PDT

Hi I have a Dell xPS 15 LS502 with core i7 processor and windows 7. It is just over a year old. Recently I find that the computer dies instantly when the battery meter runs down to about 42% or so. When I plug it in, switch the computer on again and hover over the battery meter icon it says 0% remaining and it gradually charges up as normal. What seems to be the problem is that the computer seems to think there is more juice in the battery and registers the battery meter too high. Is there any way to fix or reset this? Also there is no warnings that the battery is faulty or needs to be replaced. Any ideas? It is driving me nuts!

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All Answers

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by R. Proffitt Forum moderator / May 7, 2013 8:04 AM PDT

OK, let's get the basics out of the way fast.

1. The stock battery is your 300 cycle unit so at one year with daily battery use the battery could do exactly what you noted and nothing is wrong. It's just worn out.

2. Even so, there is no known battery meter that can accurately predict how many minutes left given the old battery (one year is OLD!)

3. Try BatteryBar. The free version is nice and can show the wear on the battery.

4. Ask Dell how to calibrate the battery.


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Dell XPS 15 Battery Meter Inacurate. HELP!!!
by DELL-Appu_S Dell staff / May 7, 2013 10:04 PM PDT

Hi milkjunkie90,

As suggested by Bob, try calibrating the battery. Here are the steps:

-Remove the AC adapter from the laptop.
-Turn on the laptop. Allow it to run on battery power until the battery is drained to 0 percent of capacity.
-Remove the battery from the laptop. Keep it aside for 1-2 hours.
-Place the battery back into the battery bay.
-Plug the AC adapter. Charge the battery overnight. Do not power on or use the laptop during this time.

In addition, try updating the BIOS of the computer and check the Battery Health Meter. You can download the BIOS update Here.

Note: Before updating BIOS please ensure that:
*Battery is 10%> or >10% charged.
*Battery charger should be connected.
*No external devices (flash drives, printers, external hard drives) should be connected.
*All other programs should be closed and documents saved.

To check the Battery Health Meter -> right click on the battery icon on the taskbar -> choose 'Dell Health Meter' -> click on 'Battery Health' tab ->• examine the information shown in the window. If the battery needs to be replaced, a red icon would be shown along with a message confirming that the battery is no longer able to hold a sufficient charge.

Please reply if you have any questions.

Thanks and Regards,
Appu S

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