Bests & Worsts Reviews from Amazon

I used these to replace the 9v batteries in 6 smoke detectors in my house. Within 5 weeks, all of my smoke detectors are now chirping the low battery warning. Typically, my smoke detectors will last at least 6 months using name brand batteries. I will not buy these again. I'm seeing people report low capacity for years now. Amazon really needs to work on the quality of their products' supply chain, as the Amazon Basics line is really hit and miss. These 9volt batteries are a total miss and not worth purchasing.