After reading Shun's comment on another thread http://www.photo.net/nikon-camera-forum/00Zes5 about sells of all the products using the above batteries being stopped I took a look on many on line stores. Some of them don't have these batteries in stock anymore but there some others that do.... I use a D50, D300 and D700 and I am not planning to upgrade any time soon. At the same time I only have 4 batteries..... So, what would happen if I buy another 4 batteries but don't use them??? Just to keep them in case the ones I have now go bad. How long can they be kept? Will they loose their native charge capability? Can anyone comment about it? Cheers!