My recently acquired 396T, in excellent condition, seems to take the requisite amount of time to charge it's batteries which are Industrial (brand name) Rechargeable NiMH AA 2250mAh. I'm not sure if these came with it or not. Anyway, the question; Having been burned by NiCad memory in the past, I don't leave stuff charging all the time (look at how many people's laptops won't hold a charge). I go to "Charge Complete" and disconnect. Seems like by a week or so later, if I go to use it I only get an hour or so on battery before the death knell. Is this normal with NiMH batteries; in particular in this unit? Thanx and may your 2012 be a fine one!