Thanks. Doing some more reading, I see that the general recommendation for storage is to charge them (or discharge them) to 3.8v per cell, and it looks like the charger he will be getting has a "storage mode" that will do that automatically? If anyone can confirm this (or disagrees) please let me know. Also, as it looks like this charger will automatically check/monitor voltage in each cell, is there any reason to get one of those little voltage checker/warning buzzer devices? They are inexpensive but I'm not sure I understand the value added.