Review on 🔋 Durable and Dependable: Duracell 6 (3x2) Duralock MN21B2PK Watch/Electronic/Keyless Entry Batteries, 12V Alkaline by Kevin Reyes

I bought these to replace a dead battery in my remote control. When they didn't seem to be working, I went ahead and opened all three packages. I then tested each battery with my Amprobe BAT-200 battery tester (a very good Revain buy) and they were all listed as needing replacement and almost dead. I thought maybe it's the type of battery that only registers a low charge. So I stopped at a local hardware store and bought a new Energizer A23 battery and it showed full power on the tester ie "Good". Of course, the hardware store battery was more expensive, but having 6 "almost dead" batteries is a waste of money. Avoid it guys.