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HP battery premature failure

xjas

Experienced Member
Joined
Jul 9, 2015
Messages
396
Location
Vancouver Island
I have this ~2011 HP Touchsmart TM2 convertible tablet/laptop thing. It's not my regular daily driver, but I always seem to find uses for it so I've kept it around.

touch2.jpg

Last year it was working completely fine, still getting good (3hr+) battery life and charging normally. I stuck it on a bookshelf for ~8 months and forgot about it. I pulled it out a few months ago and started using it again, but now the battery absolutely 100% refuses to take a charge or power the system at all. (When you pull the plug out it dies instantly.) Not only that, every time you unplug it the CMOS settings get wiped.

This is really annoying as that battery only had a couple hundred cycles max and should still have lots of life left.

I know Dells of this era had a lockout chip in the POWER SUPPLY that was prone to failure, throwing it into a gimp mode & making it refuse to charge the battery as it thought you were using an "unauthorized" 3rd party one. (Thanks, Dell! :mad1:) I'm wondering if the same thing is going on here, if there is a similar chip in either the PS or the battery itself that's failed.

I'm not having any luck searching for this - just getting a ton of generic "why my batory fail yo?" type results with completely unhelpful replies.

Have any of you had one of these fail in this way, or have any hints where the fault is? I don't feel like throwing a bunch of money at it replacing the wrong thing.
 
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