I really like my Evo but I've notcied that if I use wifi instead of 3G (and I have a strong 3G signal), my battery life doubles at the minimum.
Evo on wifi: great battery life (minimum of 16 hours, often more)
Evo on 3G: so-so battery life (generally 6-10 hours)
Conclusion: 3G is a major factor on the Evo's battery life
What I don't understand is why 3G is such a battery drain on the Evo and it wasn't on any of my previous 3G-enabled phones (6700, 6800, i730, TP, TP2). In fact, on those older phones, it was wifi that killed the battery (4 hours max on wifi then dead battery). I know they are all very different compared to the Evo (different processors, screens, batteries, OS, etc) but that still doesn't explain why 3G kills the battery on the Evo whereas it would barely make a dent on the battery life of my old WM devices. I noticed the same 3G-wifi trend on the Epic 4G as well when I had that phone for 3 weeks (so-so battery life on 3G, great battery life on wifi). Is Android just not that efficient with managing 3G (and just great with wifi)?
Evo on wifi: great battery life (minimum of 16 hours, often more)
Evo on 3G: so-so battery life (generally 6-10 hours)
Conclusion: 3G is a major factor on the Evo's battery life
What I don't understand is why 3G is such a battery drain on the Evo and it wasn't on any of my previous 3G-enabled phones (6700, 6800, i730, TP, TP2). In fact, on those older phones, it was wifi that killed the battery (4 hours max on wifi then dead battery). I know they are all very different compared to the Evo (different processors, screens, batteries, OS, etc) but that still doesn't explain why 3G kills the battery on the Evo whereas it would barely make a dent on the battery life of my old WM devices. I noticed the same 3G-wifi trend on the Epic 4G as well when I had that phone for 3 weeks (so-so battery life on 3G, great battery life on wifi). Is Android just not that efficient with managing 3G (and just great with wifi)?