Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: No better than Coppertop for me - 2 years
Review: Bought two of these two years ago and both are now dead after being in my hard-wired smoke detectors. This is the same amount of time I get out of regular Duracell Coppertops which are much cheaper. Would not recommend. It's unfortunate since I firmly believe that lithiums SHOULD be better in smoke detectors than alkalines, but these seem to be faulty in their implementation or perhaps I got a bad batch, but I don't intend to buy more to find out.
