Energizer Max9V Battery (2 Pack) - Nine Volt Alkaline Block Batteries - Reliable Power for Fire Alarms, Smoke Dectors, Radios, Toys - 100% Recyclable Plastic Free Packaging - 5 Year Shelf LifeThe Nordic Swan EcolabelThe Nordic Swan Ecolabel

Good brand. Good price and arrived relatively quickly.

Item is good well packed and should last long time. Delivery was terrible. Delivery was made at a random time not even close to time slot. Driver was so close to my house at one point, but delivered only 5 hours later. Terrible.

This is the 2nd lot of these batteries that I bought for my smoke alarms as i have 4 in my house. They are long lasting and much cheaper on here than they are in the shops.

I haven’t burned to death yet.Smoke alarms love there new batteries.

It's a battery,did what it was supposed to

Batteries to replace old ones in smoke alarms. Both died at the same time. These are what we used last time & lasted a long time.

Worked as expected. Reasonable price and quick delivery

Excellent