Amazon Basics 4-Pack 9V Alkaline Batteries, 5-Year Shelf Life - for Smoke/CO Detector, Electronics & AudioThe Nordic Swan EcolabelThe Nordic Swan Ecolabel

Dateline: A Darkened Room, a Chirping Smoke Detector, Late Saturday Night. It is a sound from the seventh circle of hell. The sharp, insistent, high-pitched CHIRP of a dying smoke detector battery. It is the universe's way of telling you, at three in the morning, that you have failed to prepare. It is a moment that calls for a specific and increasingly rare tool: the humble, blocky, 9-volt battery.This strange, rectangular power source is a relic from another time, yet it persists, the stubborn, beating heart of our most critical and our most bizarre devices. It powers the smoke alarm that saves your life, and it powers the vintage fuzz pedal that makes your guitar sound like a dying woolly mammoth. You need to have them on hand. You need a stockpile.Enter the Amazon Basics 9V. This is not the high-priced, celebrity-endorsed battery you see advertised during the Super Bowl. This is the people's battery. The pragmatist's choice. A simple, no-nonsense power brick that delivers on the one thing that truly matters: incredible, undeniable value.Let's be honest. In a head-to-head, long-distance race, will it outlast its big-name competitors? Probably not. It might run out of steam a little sooner in a high-drain device. But that is missing the point entirely. The point is that for the price of two or three of the "premium" batteries, you can have a whole damn arsenal of these things sitting in your drawer. You are not buying a single marathon runner; you are buying a fresh team of sprinters, ready to be tagged in at a moment's notice.And they will be ready. This is the second, and most crucial, part of the bargain. These batteries don't die in the drawer. They don't leak a foul, corrosive bile all over your other junk. They hold their charge with a grim, respectable tenacity. They sit there, for years if need be, patiently waiting for the call to action. Whether it's for the life-saving chirp of the smoke detector or the soul-stirring crunch of a guitar pedal, they are ready to serve.For the sheer, overwhelming value proposition, these cannot be beat. They are reliable, they are affordable, and they allow you to maintain a healthy supply of a crucial power source without taking out a second mortgage. They are the perfect, five-star solution for the well-prepared and the perpetually paranoid. A solid, working-class hero in a world of overpriced superstars.

Needed batteries for all of our smoke alarms, it’s been about a month, so far so good. Batteries fit & work as they should. I wanted a bulk pack with a decent price.

I purchased the Amazon Basics 8-Pack 9V Alkaline Batteries to use in my smoke detectors, and they’ve worked perfectly so far. The batteries have a good lifespan and provide consistent power, which is exactly what you need for safety devices.I also appreciate the 5-year shelf life—great to have extras on hand that will stay fresh. A dependable and affordable option that I’ll definitely buy again.

Good price for quantity but don’t seem to last long enough.

I buy amazon batteries over costly name brand ones! They last a long time and they work well in all of my electronics!

😘Long lasting at a value price. Have purchased multiple times.

I needed these for the smoke alarms in my home. They work great and have lasted a long time. Will buy again.

Ever had your smoke detector start blaring at 2 a.m., and you have no spare 9V batteries? That was me—until I grabbed the Amazon Basics 8-Pack 9V Alkaline Batteries. 🛒With a 5-year shelf life, these batteries are perfect for smoke detectors, garage door openers, and other household devices. I swapped out the old battery in my detector, and peace was restored. 😌They're leak-resistant, reliable, and come in a frustration-free package. Plus, at just $7.99, they're a steal. 💸If you're tired of last-minute battery runs, grab a pack of these. Your smoke detector—and your sleep—will thank you. 💤