Can i ask what the general amount of spare batteries people use?
Is it possible to put a 1300 battery into the 7650?
I use three batteries at present in cycle as i am visiting different countries each week and have a problem with bulky accessories. I tend not to carry a charger everywhere i go and use my 7650 for a modem so tend just to charge it at nights but if i use the phone all day with my laptop and calls i have been know to go through two of the three.
I can only charge one at a time.