I love this phone but battery life is brutal. I've got
Stock HTC 1620mah
Extended HTC 27xxmah
2 Ebay 1800mah
2 Ebay 3500mah
Running NeoMax: Adrenaline 1.5 (ICS .10 leak) LTE off, screen 50% at all times, sycn only gmail, ect. Basically running pretty bare bones and I still feel tied down to the charger.