Hello,

I have had the same problem with 2 nokia original batteries. Both of them broke just like yours. I have always overclocked my n900 to 900mhz. From my point of view there could be 2 culprits:

1. Overclocking the N900 damages the battery.
2. I used a cheap desktop charger to charge my second battery.

Seems like we both did "1" so, so i was wondering if you also did the second one?

Let me know.

I am ordering my 3rd battery from Amazon right now. Its 20$. Go get it.