I charge every night because I use the alarm clock in Seidio cradle. I charge throughout the day while driving between clients because I use Garmin Mobile and Jawbone all day which tends to drain the battery a lot.
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Every night.. sometimes in the middle of the day depending on my usage.. but i'm not hardly as heavy a user as some people on here, make a few phone calls, some SMS, maybe one MMS or two a day.. and TWSS a few times for ****s n giggles, battery life has never been stellar, even before .75 was released and my phone was brand new.. since ive exchanged and i'm on my 3rd storm, and i upgraded this one to .148 when the beta was leaked, battery life has gotten worse.. have to take my charger everywhere nowadays..