I picked up EBL brand Ni-MH of both 9V and D cells from the place that ships in the box with a smile on it. I noted the voltages upon receipt and there was no noticeable loss in the 6 or so weeks prior to replacing the alkaline sets in my Quickie (9Vs were at 6.75V). I topped them off with the smart charger and have been using them for a couple weeks. I will report back if I experience unexpected results, good or bad.