Ag2 wrote a nice application, battery-status, that sits in the background and periodically records the battery charge to a file. It is described here:

http://www.internettablettalk.com/fo...ad.php?t=14115

I wrote an application, battery-graph, that takes that output and draws a graph of time vs battery charge. A typical usage is:

battery-status -d 10 > /media/mmc1/battery.log &

then wait a while, and run

battery-graph /media/mmc1/battery.log

You can download battery-graph below. I've also written a replacement for battery-status called battery-info. In addition to the battery status, it displays the temperature, network activity and CPU speed. Battery info also has the option to display process activity (-p flag). This requires rps from http://www.makikiweb.com/n800/downlo....2.7.armel.deb .