Re: N900 not starting up at ALL
 

Polarcell seems to be the best replacement.

http://talk.maemo.org/showthread.php?t=65568

Re: N900 not starting up at ALL
 

There is one more thing you may want to try before investing in a new battery. As I mentioned in post #6, try charging the battery offline. That is, in a standalone charger, out of your phone. Most people don't have a standalone charger for BL-5J batteries, but you can use virtually any digital camera charger, provided the batteries have the same nominal voltage (~3.7V) and you have two short pieces of wire and the necessary skills to connect it with the right polarity. Don't leave it unattended and on or near flammable surfaces though. Not recommended to people who don't have a clue about electronics. Risk of fire or explosion.

Re: N900 not starting up at ALL
 

If you're meaning that it might be the phone, tough luck. The battery doesn't work in my grandad's Nokia 5800 XpressMusic (strange name), and the battery of the 5800 works in the N900 (IT WORKS!).

Re: N900 not starting up at ALL
 

No I meant it to prove that it was the battery. But you proved it yourself a different way (I seem to have missed that). Well done!

Re: N900 not starting up at ALL
 

cheers mate:)