What does the battery have to do with supporting NFC? I have a lot to learn about this device, because I wouldn't ordinarily think I needed special features from my battery to support a network protocol .
I wouldn't mind a better battery, but I wouldn't be able to fit a thicker phone in the case I have. This thing does chew through power, though. My battery is good for about a day sitting on the desk with everything turned on. It helps if I turn off bluetooth, gps, and mobile data while sitting at home connected to wifi. Also, it seems to recharge very quickly.