[ltp] T530 Battery Clicking

Tim Evans tkevans at tkevans.com
Sun Jul 19 16:11:31 CEST 2020

On 7/12/20 12:32 PM, Tim Evans wrote:
> Not specifically Linux...
> My T530 is doing a lot of clicking as I hold it here in my lap.  I 
> believe this sound is from whatever senses removal/replacement of the 
> power cord (and therefore switches the laptop from wallplug to battery 
> power--or back).  This distintive double-click sound, in fact, has 
> occured five or six times during the typing of this message.
> As this clicking occurs, I can see the battery charge indicator on my 
> Fedora Gnome desktop go from "charge" to "running on battery" and back. 
> Screen also flashes.
> I had a similar issue long ago with a T61 and finally narrowed it down 
> to the original Lenovo power supply cable not being right-sized for an 
> after-market 9-cell battery.
> In the current situation, however, the power supply and battery are all 
> the true Lenovo originals that came with the system.
> So, am I looking at a failing battery?  Bad power supply/cord? Something 
> else?
> Thanks for help.

Following up on this, as I've had no replies.

I replaced the factory-installed battery with a new, Lenovo-branded one. 
  Nothing's changed.  When running Fedora 32, I still hear the 
click-CLICK and CLICK-click when power switches from wallplug to battery 
and back again as the laptop moves around a bit in my lap.

Booted in Windows 10, I see the on-off pattern with the on-screen 
battery icon, but don't hear the clicks.

Tim Evans			|5 Chestnut Court
443-394-3864			|Owings Mills, MD 21117

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