http://www.wa0itp.com/ (http://www.wa0itp.com/)
The spread sheet is the 13th link down from the top. I played with it a little bit, interesting to calculate how long your batteries will last under different conditions and also the inverse of how much battery is required to last under different conditions.
Yeah, I just downloaded it and plunked some numbers in just off the top of my head and it looks to be pretty close to what I get out of my equipment.
I'm still needing a solar panel and charge controller. I'm working on building my station-in-a-box right now. Solar power will be a nice addition. 8)
Flying Pig kit (thumbs up)