You didn't happen to also install a 3000mah battery did you?
Seriously that's impossible. 19 hours @ 1%/hour just for standby would be 19% drain, putting you @ 81% battery if you did nothing at all (with the stock battery, of course.)
GPS for 40 minutes... well that's 40 minutes of talk time battery-cost wise for sure. So that right there is 22% of your battery. Plus 20% standby puts you at 58% battery... plus whatever else you used. Yep, it's either a bogus battery display, or you forgot you charged it
I did my rundown test yesterday - resisting the urge to top off
, and after 14 hours off charger, normal *light* use, I came in at 52% (From my logs...)
2009-02-06 07:12:48 - Bat: 100
2009-02-06 21:27:03 - Bat: 52
So that was 14 hours and change.
If anyone wants to test the TF3d hypothesis, just turn off TF3d and run it with some other today plugin instead, and check your battery life for the day. I'm willing to believe TF3d might cost <.5%/hour in extra battery drain. but it's not causing all of it. Even if it was 0 cost, no way you could go with even just that usage on a single charge and be @ 80% on the stock battery.