DURACELLCoppertop 9V Battery, 6 Count (Pack of 1), 9 Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices

Duracell batteries last a long time and aren't likely to corrode in your expensive electronics. This pack of six 9-volt batteries was available at a good price per battery. Our house has 5 smoke detectors which are "wired in" but use 9-volt batteries to keep working during power outages. When the batteries run low, the smoke detector beeps briefly every minute or so. It's so annoying, trying to figure out which one needs its battery replaced. This pack of Duracells is affordable enough (especially considering their long life) that we can replace all of the batteries at once without going broke.

Very simple on this one, I buy these for all my in-house smoke detectors and when they say these batteries last 5 years, take it to the bank. Worth every penny just for the knowledge that they will last and perform as designed.

Good power and last longer

Excellent batteries! Last long.

Good price so far batteries last a decent amount of time. Make sure they’re not keeping them in the warehouse too long check their dates

It's Duracell. What's not to like? Could be cheaper.

So far just one battery used in a couple months time. It has the most power output for my battery hungry acoustic guitar. Item arrived fresh and so far I am happy with this purchase.

Big fan of Duracell 9V’s as a U have used them in music equipment many years. They are reliable.