{"product_id":"blue-sea-systems-mini-add-a-battery-kit-65a-dual-circuit-compact-marine-acr-with-tin-plated-studs","title":"Blue Sea Systems Mini Add-A-Battery Kit 65A Dual-Circuit — Compact Marine ACR with Tin-Plated Studs","description":"\u003cp\u003e\u003cstrong\u003eThe Blue Sea Systems Mini Add‑A‑Battery Kit 65A (model 7649) is a compact, marine‑rated dual battery management system that automatically combines charging and isolates batteries to protect your starter and house banks.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis small, purpose-built kit provides automatic battery control for small boats and installations where space is limited. It pairs a mini dual‑circuit battery switch with an automatic charging relay (ACR) rated for 65 amps, simplifying wiring while ensuring both batteries receive charging current when the engine or charger is active, and preventing starter battery drain when systems are off.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the kit manage charging without extra switches?\u003c\/h3\u003e\n\n\u003cp\u003eThe built‑in Automatic Charging Relay senses system voltage and automatically connects both batteries during charging events. When charging stops and voltage drops, the relay opens to isolate the banks, reducing the risk of the starter battery becoming unintentionally discharged.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAutomatic Charging Relay combines batteries only while voltage indicates charging.\u003c\/li\u003e\n  \u003cli\u003eAutomatic isolation when the system is at rest to protect starter bank.\u003c\/li\u003e\n  \u003cli\u003eEliminates the need for manual switch operation during routine charging.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the Mini Dual Circuit Plus switch suitable for small boats?\u003c\/h3\u003e\n\n\u003cp\u003eThe Mini Dual Circuit Plus switch separates the starter and house banks while offering compact, straightforward controls tailored to limited helm or battery compartment space. It reduces wiring clutter by providing a single integrated unit for two‑bank systems and includes an emergency combine function for occasional parallel starting assistance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompact footprint designed for tight installations and small craft.\u003c\/li\u003e\n  \u003cli\u003eIndependent starter and house bank control for cleaner electrical layouts.\u003c\/li\u003e\n  \u003cli\u003eEmergency combine feature to link batteries temporarily if starting assistance is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this kit durable enough for marine environments?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the kit uses marine‑rated components and tin‑plated copper studs to resist corrosion and maintain reliable connections in wet, salty conditions. The design focuses on long‑term reliability for small outboard and inboard applications with a continuous 65 A rating appropriate for many compact charging systems.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTin plated copper studs for improved corrosion resistance and conductivity.\u003c\/li\u003e\n  \u003cli\u003eMarine‑grade materials selected to withstand boating environments.\u003c\/li\u003e\n  \u003cli\u003eContinuous 65 A rating suitable for many small charging sources.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will installation affect my wiring and maintenance?\u003c\/h3\u003e\n\n\u003cp\u003eThe Mini Add‑A‑Battery kit simplifies two‑bank wiring by integrating switching and charging relay functions into a single assembly, reducing terminal count and routing. Because the relay engages automatically, routine operation requires minimal user intervention and lowers chances of human error during charging cycles.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eConsolidates switching and charging relay to reduce wiring complexity.\u003c\/li\u003e\n  \u003cli\u003eFewer external controls to operate during normal use.\u003c\/li\u003e\n  \u003cli\u003eClear terminals and robust studs simplify service and inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Blue Sea Systems 7649 Mini Add‑A‑Battery Kit is ideal for owners of small boats, tenders, and compact vessels who need reliable starter\/house bank management without sacrificing space. It suits DIY installers, boat builders, and anyone replacing inefficient or bulky switching systems with a marine‑rated, automatic solution that balances protection, convenience, and corrosion resistance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What amp rating is the Mini Add‑A‑Battery kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The Blue Sea Systems 7649 is rated for continuous 65 A service, suitable for many small charging sources.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I combine batteries manually in an emergency?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Mini Dual Circuit Plus includes an emergency combine function to link batteries for starting assistance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":48081471373470,"sku":"B00BFVHDNA","price":202.58,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/blue-sea-systems-mini-add-a-battery-front-view.jpg?v=1785806202","url":"https:\/\/northtrailauto.ca\/products\/blue-sea-systems-mini-add-a-battery-kit-65a-dual-circuit-compact-marine-acr-with-tin-plated-studs","provider":"North Trail Auto","version":"1.0","type":"link"}