yes I don't think there is any way to view a percentage. I wouldn't worry though. If you watch the little battery icon you can practicalyy watch it go down to zero. by the way ... I'm posting from my iPhone. Woot!Where did you get this 20% number? I can't find that anywhere. Tonight, I thought I was down to what looked like 10% or 15% battery on the little meter. When I plugged it in for a charge, it looked like 40% on the big meter. How in the world do I know how much I can really go? This is driving me nuts!