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14 Posts

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May 19th, 2023 02:00

Critical battery trigger and sleep mode on 5550

Hello Dear Fellow Precision users!

So I've been facing this issue for quite some time now (about 7-8 months), but it only occurs randomly and every now-and-then (about once a month or two). So it is nothing that bothered me enough to take action.

Until now - it occurred two times in the past two days.

Unit: Precision M5550, UHD Touch, i7-10850H, 64GB, T2000, W10Pro 

Long story short: Imagine working smoothly, going on about with your day, and then - POOF - laptop suddenly goes dark and starts the shutdown procedure, as in normal hibernating.

Looking at the event log:

 

Trigger: event 524, critical battery trigger

jtgol_1-1684489185490.png

 

Effect: Event 42, entering sleep mode, reason: battery

jtgol_0-1684489117501.png

And then laptops shuts down (hibernating). Without any other issues I can turn it back on and continue working. Battery remains at normal capacity during the event.

 

Battery status via Power Manager:

jtgol_2-1684489335851.png

 

Battery is working perfectly (up to 10h when in power-saver on battery only). So I don't suspect any issues there (checked with external software as well, returns good parameters).

I suspect drivers - the question is which. Has any one had any experience with the described issue and found any solution? Could it be the improved Optimizer (with Power Manager capabilities)?

 

Looking forward for any insights!

Regards!

 

8 Wizard

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7.1K Posts

May 19th, 2023 18:00

you can reset drivers and calibrate the battery so that Windows can get a baseline for accuracy of battery capacity.

  • Charge the battery to full, remove the battery and power on the laptop with AC adapter. 
  • Under Device Manager, remove (delete) both items in Batteries.  Shutdown, remove AC charger and reinstall battery.
  • With the AC charger removed, power on the laptop, the drivers for charger and battery will be reinstalled automatically.
  • Allow the machine to run on battery until it's dead (shutdown by itself).  Reapply AC charger and let it charges the battery to full
  • Run the charge, discharge for 3 cycles.  Delete the battery report (in system32) and check again for new usages pattern in a few days. 
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