🔋 Long-lasting Duracell Duralock Alkaline Batteries - Pack of 8, 12V, MN21B4 8LR50 A23 MN21 Review

These batteries lasted exactly 20 days in my wireless door/window alarm sensors. My alarm clock came with unnamed Chinese batteries that lasted about the same. I figured quality name brand batteries would last a lot longer, but after these Duracell batteries ran out just as quickly, I cut off both the cheap no name and Duracell batteries. Both contained a stack of 8 identical cheap Chinese button cell batteries. My advice; If you have a device that requires these batteries, just buy the…

I bought these 12v batteries because I had good luck with Duracell products. They just arrived and according to the packaging they should be used by March 2022 which is 4 years from now. I took a multimeter and checked all 8 batteries. None of the tests were good, several tests were questionable (about 7.8 volts) and the rest tested bad (about 7.4 volts or less). .I had previously had bad experiences with KEYKO A-23 batteries and decided to stick with Duracell. Perhaps it is simply the nature…

We've been using these Duracell Procell batteries for many years and are going back to the earlier black, gray and red color scheme. . These batteries are reliable; have fantastic durability; lasts a long time during use; and (and!) never leaked. Plus, we've never had a dead battery right out of the box. That's all we need from our batteries. As an added bonus, the copper colored blank areas are perfect for writing the install date on these batteries. The Sharpie black ink shows up perfectly…