After 3 weeks, if the battery performs less or shorter than they advertised, you've got warranty. Use that to get either a good battery or a better phone.
I've had T-Mobile Galaxy S2 for 3 wks, phone is perfect for my needs but I'm losing about 15% battery life per hour with minimal use, not even making it thru a work day!
GPS, Bluetooth& Sync are OFF, auto update is OFF, Wi-Fi is OFF but I've tried it both ways (on/off), display is set @ bare minimum, Power Saver is on, I don't do much browsing & use primarily for phone/email, 2-3 texts daily. I can't even do a crossword puzzle while waiting for an appt. because it uses 25% of my battery.
HELP! What other adjustments should I make? (I can't afford to buy another phone!)