Yes I’ve been experiencing the same. Didn’t realise when I bought 20 of these things how much of a pain getting 1/2 AAs would be. None of the main battery manufactures make these. why the hell would aeotec choose this type of battery over the much more common CR2 or CR123 I don’t know. Madness
So I just through away a load of DOA EEMB from Amazon. And bought a few Saft and so far they seem better.