roberc567:

I don't have specific data on battery life; it just seems obvious to me that I'm changing batteries a lot less often. I am using the hell out of my N800. maybe for 12 hours or more a day for web browsing, reading and replying to email, and listening to audio mainly thru streaming, and reading ebooks. And playing with various programs such as Maemo Mapper. Most of the time I am in my house, linked to the wifi. As far as I can tell, the estimated numbers of hours you get after tapping the battery status icon aren't very worthwhile as estimates, but it currently says 5 hours/8 days, and it has been quite awhile since I put in the fresh battery. My WAG is that now I'm getting more like 5 hrs and before it was more like 3. I could be way off.

I am using two cheap Hong Kong batteries and the original Nokia; they are being charged with a cheap Asian charger. So far so good, and no explosions,

I have a theory about battery life and why I had so many bad problems with the earlier firmware. It seems to me that there were precipitous drops in the amount of battery left and this caused bad crashes and corrupted files. Now, with the new version, that problem seems to be gone.