Unplugged fone from charger at about 5:30 am, Shut off data via Settings/Wireless and networks/mobile networks/Data enabled;/ when i went to work. on break at 9 or so had 97% battery and 2 text messages (data off does not effect regular text messages or phone calls only multimedia messages or internet). Went to lunch at 11 or so and played online for 1 hour with 4g data turned back on. Went to friends house after work and her daughter watched a whole movie on netflix on my phone. Is now 8 pm and battery is at 35%. MUCH better than my indulge ever did on 4g.