The 2SW-D02 battery is designed specifically for the SAMYUNG SAR-9 SART (Search and Rescue Transponder) device. This high-quality, brand-new battery ensures optimal performance and reliability for the SAR-9 SART system. It has a shelf life of 5 years, meaning it can be stored for a long period without losing its effectiveness. This battery is essential for maintaining the functionality of the SAR-9 SART, which is used for maritime search and rescue operations.