The Eternal Flame of Tiny Power” Let me tell you about this Energizer 9V battery — the Chuck Norris of electricity. I bought one in 2008 for a smoke detector. That smoke detector has since witnessed three apartments, two breakups, one existential crisis, and a mysterious incident involving microwave popcorn and regret. The battery? Still going. Probably judging me. Last week, my friend’s Bluetooth speaker died mid-party. I pulled this battery out of my smoke alarm like a defibrillator in a medical drama, snapped it in, and boom — instant resurrection. I’m convinced these things aren’t powered by chemicals — they’re fueled by pure spite and determination. If the apocalypse comes, the only survivors will be cockroaches and 9V Energizers. 10/10 would trust to power my smoke alarm, my hopes, and maybe my next relationship.

I use this for my active pickups in my Zakk Wylde gibson les paul, get a long lasting drive out of them, and always reliable, without being too expensive too!

These are really great. I use them in my smoke alarms. They last a very long time and I don’t have to worry about changing them very often. They are also a great value.

Great batteries, last so much longer than the ‘cheaper’ versions. Very happy with the packaging and the durability of them. Will be buying again.