The McMurdo Fastfind Plus & Max G Battery Replacement can be replaced by the user. The battery comes with an O-ring and screw for the battery compartment. The McMurdo Fastfind Plus/Max G User Replaceable Battery is a dependable power solution designed to keep your Personal Locator Beacon (PLB) operating at peak performance. Built for straightforward user installation, the kit includes essential components such as O-rings and a securing screw to help maintain the devices watertight seal.Engineered for durability and reliability, this battery provides a long 5-year service life and performs effectively in extreme temperatures down to -20C. It also plays a vital role in preserving the PLBs sealing system, ensuring consistent performance when its needed most.FeaturesUser-replaceable battery for added convenienceIncludes O-rings and a securing screw for proper sealingSpecifically designed for Fastfind Plus and Max G PLBs5-year lifespan for long-term reliabilityOperates in temperatures as low as -20CHelps maintain the devices watertight integrityEssential for keeping your PLB ready and reliableSpecificationsCompatibility: McMurdo Fastfind Plus / Max / Max G PLBsBattery Life: Up to 5 yearsOperating Temperature: Down to -20CIncluded Components: Battery pack, O-rings, screwReplacement Type: User replaceableReference: McMurdo Battery No: 85-763-020A