Max Alkaline 9 Volt, 4-Count

They are 9V batteries. 4 of them. Perfect for two smoke detectors and two CO detectors.

As advertised. Fresh batteries

I picked up this 4-pack of Energizer MAX 9V batteries because I was tired of dealing with cheap ones that randomly die. These have been solid so far. I put one in my smoke detector and another in a small guitar amp both are running perfectly without any drops or weird noises. What I like most is the peace of mind. I don’t buy 9V batteries often, so when I do, I want them to last, and these feel like the “buy once and forget about it” type. Packaging was clean, no corrosion, and the expiration dates were far out. Not much else to say just dependable power that actually holds up. Exactly what I wanted.

Great batteries! So far so good when I used them for our gate clickers.

They are great bstteries also. They do last long too

Great for my fire alarms

It was bought for the smoke detector at home. One battery can last for a year.

Very good, arrived very fast

uso esta marca de baterias constantemnente y El precio me parecio bueno las recomiendo siempre es bueno tenerlas en casa

good

Works great

Cumple su funcion

great for out side in our cold winters long life