I see a few times a week people talking about battery life and how much they are looking to extend it. When I got my EVO I had already heard horror stories about battery life so I bought a 3500 seido right away. I never felt the pain of stock battery until tonight.

I decided to put my stock battery in and run my setup to compare. The result was amazing. Typically by the end of work on extended battery I would have 50-60% left. As I post this I still have another hour or two left of work and have already had to charge the stock battery.

So to the bottom line. Mikg3d freedom overclocked 1.2
Stock 6-8 hours of my use.
Extended 16+ hours of my use.
I am a heavy user to the extreme aparently

 

Personally I GPS, watch netflix, browse the web, and make about 100 phone calls a night ranging from 1 minute to 20 minutes. The stock battery simply did not hold up. Personally the size of the EVO is already rather large, who cares about an extra 3/16" on the back? I would rather have that then be attached to my car charger all night.