I get about four hours of droid display on every charge. I use the regular oem battery
-Always have GPS, Display to lowest it can go, wifi off, Bluetooth, and sync always off. Also backround data off.
Do mostly texting with a occasional web browsing, also check email once or twice a day.
haha, Sorry I wasn't so clear. I mean 4 hours of battery usage with the display on doing tasks. I was just wondering with your usage type how many minutes/hours of display on you get per charge.
Also yes there is a way to measure the amount of display on per charges. (or until your plug your device into a charger)
Settings-About Phone-Battery Usage