Same problem here. No resolution yet. See at  http://www.dellcommunity.com/supportforums/board?board.id=insp_power

 

Any suggestions will be appreciated.

I've just bought a new Dell battery for my son's Inspiron 6000, and it's come up with the same "Battery cannot be identified" warning on boot-up.  Having spent the last couple of days searching the internet, all I can say is that this seems to be a very common fault that sparks off lots of wild talk about needing to replace everything from the battery to the motherboard. 

 

The best common reported solution I have found is to downgrade the Bios to the lowest version.  I have come across half-a-dozen reports of this resolving the problem - and conversely of the battery identification problem happening straight after a Bios upgrade.  I think this is a side-effect of Dell adding intelligence to the battery and the charging circuits.  I am guessing, but I assume this was given a major overhaul after their problem with batteries overheating?  Maybe newer versions of the Bios are much fussier or don't like older batteries.

 

I would have hoped that Dell Tech Support would have been more forthcoming. 

 

I have lodged a query with the supplier that I just bought the battery from, on the grounds that I'm lazy and don't want to risk updating the Bios unless I have to.  One forum seemed to suggest that whilst upgrading was simple, downgrading was tricky?  I will check this out while I wait for a response from the supplier - I'll let you know how I get on.