I still remember my Physics 101, charging a battery has to do with the difference in the voltage between the charge source and the charge destination. I think the voltage between 2 AA battery and the N800 is simply too small to be working. While the laptop computer or even just 4 AA battery is large enough to do the job. I think I can still make use of this 2 AA battery charger, I will test it to run with an N800, see whether that would increase run time.


bun