![Blue Sea 7649 Mini Add-A-Battery Kit - Boxed Packaging [7649003] Communication | Hailer Horns you gain optional features such](https://cdn.shopify.com/s/files/1/0350/0497/3196/files/52195XL.jpg?v=1682675962)
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you gain optional features such as Auto Guidance¹
Freedom 458
Replacement for SWM-8
Owner upgradeable to 24 Volts DC with 8243
A GT52-TM transducer is included for Garmin CHIRP sonar along with CHIRP ClearVü™ and CHIRP SideVü™ scanning sonars
Blue Sea 7649 Mini Add-A-Battery Kit - Boxed Packaging [7649003] Communication | Hailer Horns you gain optional features such7649 Mini Add A Battery Kit Boxed Packaging What does the Mini Add A Battery do? Adding a second battery prevents getting stranded with a dead battery by isolating the start battery from the house loads that can quickly discharge a battery. The Mini Add A Battery offers a compact, simple way to control the switching with the m Series Dual Circuit PlusT Battery Switch and automatically share a single source of charging between two batteries with the