Battery pack Dell FV993 Brooks9c SJ92

[ex250]

Hi, I have a dell M6600 laptop with this battery, laptop marks it as not usable and orange battery blinking in the laptop led.

I have dismantled the battery pack and the cells seems all charged, but seems that there is no output from it in the conector.

Any one has one schematic of it, or any idea from where to start?

[piernov]

Re: Battery pack Dell FV993 Brooks9c SJ92

Permanent failure flag most likely triggered.
Don't mess with lithium batteries.

[ex250]

Re: Battery pack Dell FV993 Brooks9c SJ92

I don't want to mess, but is not clear for me if the cells are all retaining 3,7v of charge, the laptop says they are unusable (but 100% charged). Makes me think about Dell wanting money for planned obsolescence.