Dell E6520 hard shut-down after replacing battery.

[Stekker]

Hello!

Recently I noticed that my laptop battery was reaching the end of it's usable life, so thinking ahead I ordered a new (non-dell) one. After receiving and replacing the battery all seemed well, I ran the on-board Dell diagnostic and it stated that the battery health was 100% Yay! The sun started to shine so I undid my shoes, took off my clothes and ventured out into the great unknown that is my garden.
But alas, it was not to be, if the battery drops under 90% the laptop just cuts out. Bad battery right? But here's the catch: If I install the old battery all is well, if I run the new battery in safe mode all is well too. I got another (non-dell) replacement battery from the vendor and the problem remains the same. What's going on?

specs:
Dell Latitude E6520 running windows 7 professional 64bit SP1 (with I7-2720QM)

Chargers: 65W and 90W AC Adapter (+dock)

Old battery:
Dell (8700maH) Type: XV2VV

Replacement battery: (2x)
Samsung SDIDELL TVMVN (5200maH) Type: T54FJ, E5420

In short:
-Works fine with old battery, but health it around 50%
-New battery installed: will boot, shuts down after logging into windows, or if charger is taken out and battery level drops below ~90% Will boot and work if booted into safe mode. This is true for both replacement batteries.
-If old battery is reinstalled all is well again.

Tried resetting the powerplan to factory defaults, disabling power service, updating the bios, swapping chargers, using the dock to charge but nothing seems to make any difference so far.

Any ideas? Any additional information needed? I would really appreciate a hand with this.

Sincerely,

Maarten.

 

[Laptop_Nerd]

Hi,

Please do try doing a battery calibration with the new battery installed that may help in solving the issue.

Here's how to do the calibration.
http/www.tomsguide.com/faq/id-2342991/calibrate-battery-windows-laptops.html

 

[Stekker]

Thanks! I'll get right on it.

Hi,

Please do try doing a battery calibration with the new battery installed that may help in solving the issue.

Here's how to do the calibration.
http/www.tomsguide.com/faq/id-2342991/calibrate-battery-windows-laptops.html

 

[Stekker]

Hi again,
Quick question: Does this work in safe mode as well? Because I can't do this with a normal boot as it cuts the power shortly after I pull the charger.
I'm just trying to avoid waiting for hours without result

Hi,

Please do try doing a battery calibration with the new battery installed that may help in solving the issue.

Here's how to do the calibration.
http/www.tomsguide.com/faq/id-2342991/calibrate-battery-windows-laptops.html

 

[Stekker]

Worked after a bit of tinkering; it appeared that some thermal shut-downs coincided with the battery change. After noticing this I throttled the CPU back to 60% and cooling to active (both in the power plan settings,under advanced) and it worked.

Just out of curiosity, do you think the difference in capacity between the old and new one could have made this a bigger issue than it should be?

I'm not sure if it's related to the problem, but the cooler seems less active (and CPU temps seem higher, ~60-80C @idle, was ~40-50 before,@21C ambient) since I updated the bios (V2-V19) and reset the powerplan to default. Should have done those on separate occasions really. Oh well.
I also noticed that there's a setting in the bios called "Dell express charge" that states it "might not available for all batteries." going to see if that might be part of the issue, I deactivated it prior to following the guide you linked to.

As you may have noticed, this is my first laptop Thanks for the help!

Hi,

Please do try doing a battery calibration with the new battery installed that may help in solving the issue.

Here's how to do the calibration.
http/www.tomsguide.com/faq/id-2342991/calibrate-battery-windows-laptops.html

 

[Stekker]

Aaand it's back to not working again, so it appears the above didn't help. I think I might have figured out what's going on though, but I have no idea why.

Under power management>advanced>processor power management> maximum processor state>on battery:
If set to 99% the laptop functions, I did a stresstest using prime 95/realtemp (10 minute sensor test) and it's completed successfully.
If set to 100% the laptop shuts down (cuts power)
After that I can still boot, but it shuts down again when I log into windows. If I connect the charger, log in and set it back to 99% all is well again....

Any idea?

Hi,

Please do try doing a battery calibration with the new battery installed that may help in solving the issue.

Here's how to do the calibration.
http/www.tomsguide.com/faq/id-2342991/calibrate-battery-windows-laptops.html

 

[vennomracing]

Resurrecting from the dead to say thank you!! The answer I've been searching for 8 months now. Thanks. E6430 Dell.