--- title: Ultralife 9volt Battery - the longest lasting description: The Ultralfe 9V Battery is the longest lasting 9 Volt and has sold over 100 million units worldwide --- [![Accutronics Ltd & Ultralife Corporation](https://info.ultralifecorporation.com/hs-fs/hubfs/Ultralife_Logo_Vector.png?width=1750&height=250&name=Ultralife_Logo_Vector.png "Accutronics Ltd & Ultralife Corporation")](https://ultralifecorporation.com/) - [Contact Us](https://ecommerce.ultralifecorporation.com/contact) [![Learn More](https://no-cache.hubspot.com/cta/default/588756/32c1165d-afad-4590-8eb6-f41507fe3447.png)](https://cta-redirect.hubspot.com/cta/redirect/588756/32c1165d-afad-4590-8eb6-f41507fe3447) ## [Ultralife 9 Volt -](https://www.ultralifecorporation.com/ECommerce/CatalogSearch.aspx?SearchStr=9v&SCID=-1&sescf=True)[the Longest Lasting 9V battery](https://blog.accutronics.com/blog/ultralife-9volt-the-longest-lasting-9v-battery)   ![9-volt-2.jpg](https://info.ultralifecorporation.com/hs-fs/hubfs/Ultralife/9-volt-2.jpg?width=320&name=9-volt-2.jpg)Ultralife's Lithium 9 Volt battery was launched in 1991 as the world’s longest lasting lithium 9V and since the initial launch, there have been over 100 million units sold worldwide. The battery immediately gained acceptance into critical markets such as smoke detectors, security sensors and medical telemetry. The well established ‘next generation’ 9V utilizes [Ultralife ThinCell™](https://www.ultralifecorporation.com/ECommerce/CatalogSearch.aspx?SearchStr=thin&SCID=-1&sescf=True) technology, where three individual thin foil cased cells are combined to create a 9V battery. Ultralife has been producing ThinCell™ technology cells for over 15 years. ***Don’t let the competitor’s lithium 9V products fool you!**  *The [Ultralife Lithium 9V](https://www.ultralifecorporation.com/ECommerce/CatalogSearch.aspx?SearchStr=9v&SCID=-1&sescf=True) has the highest energy available from leading brand names. Where the competition offers lithium 9V products that boast 800mAh of capacity, the [Ultralife Lithium 9V](https://www.ultralifecorporation.com/ECommerce/CatalogSearch.aspx?SearchStr=9v&SCID=-1&sescf=True)battery offers 1200mAh or 50% more energy than the nearest brand name competitor! Figure 3 compares Ultralife 9V to other lithium 9V performances. ![9v_simulation.jpg](https://info.ultralifecorporation.com/hs-fs/hubfs/Ultralife/9v_simulation.jpg?width=473&height=346&name=9v_simulation.jpg) **COMMON REPLACEMENTS FOR:** Smoke alarms / carbon-monoxide detectors Music / audio devices Walkie-Talkies Radio Controllers Rugged handheld devices Telematics Test and Instrumentation Beacons and emergency location transmitters Security systems / sensors Metering systems Sonobuoy’s Handheld security scanners Medical Instruments Wearable medical devices Surgical lighting Patient monitors Data recorders Remote monitoring systems   #### If you'd like to know more please complete the short form opposite as we'd love to discuss your requirements... ## Drop us a line. We'd love to chat. We're never too busy to talk to someone as nice as you. \[fa icon="envelope"\] ### Email us: [sales@ultralifecorp.com](https://www.ultralifecorporation.com/CUSTOMER_INQUIRY) \[fa icon="phone"\] ### Call us: +1 (315) 332-7100 \[fa icon="home"\] ### Find us: 2000 Technology Parkway Newark, NY 14513 USA #### About Us Ultralife Corporation is a leading provider of advanced, highest quality products and services ranging from cells, batteries, charger and power solutions to communications and electronics systems to customers across the globe in the government & defense, medical, safety & security, energy, and industrial sectors. [Learn More \[fa icon="long-arrow-right"\]](https://www.ultralifecorporation.com/aboutus) #### More Links - [\[fa icon="caret-right"\] Home](http://www.ultralifecorporation.com) - [\[fa icon="caret-right"\] About Us](https://www.ultralifecorporation.com/aboutus) - [\[fa icon="caret-right"\] Contact Us](https://www.ultralifecorporation.com/CUSTOMER_INQUIRY) #### Contact Us \[fa icon="phone"\]  +1 (315) 332-7100 \[fa icon="envelope"\]  [mailto:sales@u](mailto:sales@ultralifecorp.com)[ltralifecorp.com](mailto:sales@ultralifecorp.com) \[fa icon="home"\] 2000 Technology Parkway, Newark, NY 14513 USA [\[fa icon="facebook-square"\]](https://www.facebook.com/UltralifeCorp/) [\[fa icon="linkedin-square"\]](https://www.linkedin.com/company/ultralife-corporation) [\[fa icon="twitter-square"\]](https://twitter.com/UltralifeCorp) [\[fa icon="google-square"\]](https://plus.google.com/+UltralifeCorporationNewark) Copyright 2026 | Designed with \[fa icon="heart"\] by [HubSpot](https://www.hubspot.com) \[fa icon="chevron-up"\] ![](https://i.canddi.com/i.gif?A=0cfe735d8ca3730193f3a939628c109d)