Fish Finder & Electronics

Lithium & AGM Batteries for Fish Finders, Alarm Systems & Portable Electronics 

Whether you need a lithium fish finder battery you can rely on to run your equipment all day, or an alarm system battery so you can rest easy all night, GMI Energy has options for all your electronics needs. If you need help, please contact GMI Energy with any questions you may have. To calculate how long a battery will run your electronics for, refer to the "Calculating Battery Capacity" section of our guide to Choosing the Right Battery.