[a_c_s]

I've used stock, Mighty and Juicy on the TP2 and am currently sticking with Juicy...but to second others, generally speaking, you should get better battery performance on custom ROMs than the stock ones...the reason is that the custom ones already build in hacks and tweaks to increase efficiency and battery life...

I personally use my phone moderately throughout the day, have push email on the entire day, and get something like 20-22 hrs of battery life on the TP2... with the same usage, I got literally less than half of that (maybe 8-9hrs) on my TP1 modded out...

If you can barely get through a day either you have a defective battery, a defective unit, corrupted software, or your definition of moderate use and mine are very different...

good luck...