They most likely are, i don't think they manufacture 1/2D nicd cells, the question is what brand they use, if tenergy, it is not that bad, it is probably the only somewhat good brand left that makes them, but then tenergy has several factories worldwide, their blue nimh D cells were crap, but their premium and centura series were pretty good. so even with tenergy is it not all that clear, with the rest i would not even take a chance. The only cells that used to come from japan was sanyo cadnica, but they no longer make nicd cells, old stock are probably too old, thou their nicd can sit for many years with no issues, but you never know how long they were stored for, and in what conditions, they don't like to be frozen for a long periods of time, so if they sat at unheated warehouse for years, i would not risk even with good brands.