Let’s peek inside your smoke detectors. The batteries look familiar, right? Chances are that they are ordinary 9-volt batteries. Smoke detectors, clock radios, bathroom scales—everything gets the same battery. It really shouldn’t be that way.

When it comes to batteries, smoke detector performance requires more than just “the usual” batteries. Smoke detectors quickly drain ordinary alkaline and carbon-zinc batteries. Next thing you know, the annoying chirp of a low battery alert is waking you up.

Medic Batteries and Ultralife have the battery to keep your smoke alarms running, year after year, so you can stay out of the battery store and off the ladder year after year. The Ultralife 9-volt lithium battery is engineered for long life—10 years, guaranteed—in ionization-type smoke detectors.

Ultralife batteries have proved themselves in homes and offices around the country. Customers tell Medic Batteries that they “no longer need to change smoke detector batteries every year” after switching to Ultralife. One commercial user says that, thanks to Ultralife batteries, smoke detector upkeep is no longer on his schedule every three months.




Ultralife batteries cost a little more than ordinary batteries. That’s not surprising, because construction and performance like this doesn’t come with a bargain-basement price. Medic Batteries works hard to keep that cost low—we sell Ultralife only in discount bulk packages—and the savings add up. As a customer recently told us, “The cost is completely worth it. I’m saving so much money by not changing the batteries every year.”

Ultralife has made it a very simple choice. In the words of one Medic Batteries customer: “This is the right product for you if you’re sick of changing batteries. Smoke detector maintenance is a thing of the past. Excellent.”

We couldn’t have said it better ourselves.

Like anything else in daily use, smoke detectors have a lifespan. Manufacturers say that a detector should be replaced after 10 years of service. During those 10 years, the battery typically goes dead and is replaced five to 10 times. Sometimes, it is never replaced at all—many batteries are removed the first time the “low battery” alarm sounds and then simply forgotten.



Why is it necessary to replace the batteries so often? Many people select ordinary alkaline or carbon-zinc batteries for smoke alarm use. Smoke alarms require constant, low-level power, and this demand quickly drains these ordinary batteries.

Dead or removed batteries pose a significant safety risk—disabled smoke detectors are a factor in many home fire injuries. Some states legally require “long-life” ionization-type detectors that are equipped with a 10-year smoke alarm battery. It makes sense—if a detector is going to be working hard for 10 years, all batteries for smoke alarm use should go the same distance.

Ultralife batteries are standard equipment in most of these long-life detectors, and they can bring the same performance to your smoke alarm. The ultralife 9-volt lithium battery is designed and guaranteed to be a 10-year smoke alarm battery in ionization-type smoke detectors. These batteries use leading-edge, UL-listed lithium technology to maximize life and ensure safety, and they are available in a plastic or weather-resistant aluminum housing.

Medic Batteries offers Ultralife 9-volt lithium in discount bulk packs, so you can easily and affordably upgrade each detector in your home or office with a 10-year smoke alarm battery. Same-day FREE shipping—puts safety and low maintenance right around the corner; the next trip up the ladder can be your last for a decade.

If you need batteries for smoke alarm use, it’s an easy decision: Replace the battery in each smoke alarm every year, or go with Ultralife, the battery designed to last the life of your alarm.