Considering that the battery is replaceable, I wouldn't worry too much over it. Charge at night (unless like me you fall asleep holding it) and most any time during the day when you get the chance. The only thing you need worry about is weather it has the power to do what you want to do when you want to do it. Your only worry should be not getting too low, and only that because of the issues reported by some regarding low batteries and them not wanting to turn on. But I'm not even worried about that.....