i buy it at sprintrelay i love it htc evo 4g but i hate battery too short like five hours that it .. feed htc evo's charger three time per day.. i hate battery 1500mah too little for htc evo 4g 4.3 size big.. i have to htc evo send back to sprintrelay and rma soon .. sad.. i can't do nothing smile
Size of battery do not matter anymore.I forgot to tell you. turn off GPS.
You may buy second battery pack.
Seidio 1750 extended life battery. Cost at about $45.
Seidio Innocell 1750 mAh Slim Extended Life Battery for HTC EVO 4G | Shopper Grove
Looks at iPhone 3Gs is only 1219 mAh. It's about CPU and hardware power and OS.
Think! OSX Leonard on old Macbook 13" and battery life run for 5 hours and Windows 7 boot camp on same Old Macbook 13" and battery life run around 3-4 hours.