Probably a stupid question but when looking at that file I read:

[B]T490/T590 Logic Schematics[/B]
​
but maybe its the same as my p43s?Probably a stupid question but when looking at that file I read:

[B]T490/T590 Logic Schematics[/B]
​
but maybe its the same as my p43s?Probably a stupid question but when looking at that file I read:

[B]T490/T590 Logic Schematics[/B]
​
but maybe its the same as my p43s?

Thanks for the suggestion! I was hoping for a "standard" method to check just the battery when not attached to the laptop. E.g. if I using the Multimeter can confirm its dead then I don't have to investigate further.

Regarding schematics a quick search gave this:
[url]https://laptop-schematics.com/view/12463/[/url]

but seems I have to pay for it - besides the screenshots.https://Thanks for the suggestion! I...nfirm its dead

Hi everyone,

I'm having an issue with my Lenovo ThinkPad P43s. The laptop [B]does not power on when the internal battery is connected[/B], but it [B]works fine on AC power alone[/B] (battery disconnected). Once the battery is reconnected, the system becomes completely unresponsive — no lights, no fan spin, nothing.

Here's what I've tried so far:[LIST][*][B]Power/EC reset[/B] (held power button for 60 seconds with battery and AC disconnected)[*]Booted successfully [B]on AC power only[/B] with the battery disconnected[*]Visual inspection of the battery — no swelling,...

Hello, just a novice curious about learning to fix hardware more on my own.