I usually charge at night by plugging the phone into the wall. I use an old iPod charger because my iPhone cable has broken. I have a jailbroken 3.1.2 OS with Cydia and RockApp. I turn off Bluetooth when I'm not using it, I turn off WiFi when I'm not using it, I went into RockApp and figured out to turn off checking for updates. I stopped using MyWi because it was REALLY sucking the battery. I plug the phone in, now (which means it's getting some charge during the day). I still can't use the phone for more than half a day when most of the time it's on standby. I updated to 3.1.2 to see if it would help, but it didn't. Is this because of the jailbreak? What should I do? I can barely use any app and I'm thinking of looking for a different phone.

Меняйте телефон !!!!