I hope AC DELCO see this because I don't know how to contact them otherwise. I bought this 100 pack back in October. Only a couple devices here use AA. I just had to recycle 4 more that were in my pool remote control for 5 days. This control does not "suck energy". It's used 2 times each night to turn on pool light. Other brands have lasted 4 to 5 months without needing replacement. I am disappointed> I looked back at our recycle bags and found about 24 of these AA batteries that were discarded due to failure. For now, I am buying a different brand.