After I am an advocate of batteries, I do not believe in our throwaway society, I have therefore tens of batteries at home. There were already tested a number of other brands, to date the Eneloops are really by far the best I had so far. I buy for this experience only Eneloops in size AA and AAA. I also find the transport box has succeeded because it can be used both for 4 pcs. AA and 5 pcs. AAA.