{"product_id":"optima-d27m-bluetop-boat-rv-dual-purpose-agm-battery-800-cca-66ah-spiralcell-sealed","title":"OPTIMA D27M BLUETOP Boat \u0026 RV Dual-Purpose AGM Battery — 800 CCA, 66Ah, SpiralCell Sealed","description":"\u003cb\u003eOPTIMA D27M BLUETOP® is a sealed AGM dual-purpose battery built to deliver reliable starting power and sustained deep-cycle performance for boats and RVs.\u003c\/b\u003e\n\nThe OPTIMA D27M BLUETOP pairs starting capability with deep-cycle endurance in a compact, maintenance-free package. Its spiralcell construction and advanced AGM design increase vibration resistance, extend service life, and make the battery spillproof and mountable in nearly any orientation. This makes it a practical choice when you need dependable cranking performance plus hours of accessory power aboard marine craft or recreational vehicles.\n\n\u003ch3\u003eHow does the D27M support both starting and house loads?\u003c\/h3\u003e\n\u003cp\u003eThe D27M is engineered as a true dual-purpose battery: it offers high cold-cranking amps for reliable engine starts while its reserve capacity and cycle durability supply sustained energy for accessories. AGM construction delivers consistent voltage under load and faster recharge times compared with conventional flooded batteries.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e800 CCA for strong cold starts in varied conditions\u003c\/li\u003e\n  \u003cli\u003e66 Ah (C20) capacity and 140 minutes reserve for accessory runtime\u003c\/li\u003e\n  \u003cli\u003eFaster recharge characteristics suitable for alternator and DC charging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat technology makes OPTIMA batteries more durable?\u003c\/h3\u003e\n\u003cp\u003eOPTIMA uses SpiralCell Technology with nearly pure lead in tightly wound cells, creating a dense, vibration-resistant core. The sealed AGM design prevents spills and reduces maintenance, while the construction tolerates harsh marine and road conditions better than standard flooded batteries.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral-wound plates for consistent power delivery\u003c\/li\u003e\n  \u003cli\u003eUp to 15× greater vibration resistance than flooded types\u003c\/li\u003e\n  \u003cli\u003eSealed AGM means no topping up and versatile mounting positions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this battery fit and perform in my boat or RV?\u003c\/h3\u003e\n\u003cp\u003eThe D27M is shaped and sized for common marine and recreational battery compartments and includes both SAE and 5\/16\" stainless-steel stud terminals for flexible installation. Its compact footprint and 53.8-pound weight balance convenience with robust capacity for sizeable accessory loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDimensions: 12.19\" L × 6.81\" W × 8.75\" H for straightforward fitting\u003c\/li\u003e\n  \u003cli\u003eDual terminal types for universal wiring options\u003c\/li\u003e\n  \u003cli\u003eSpillproof and mountable in virtually any position for flexible placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and maintenance should I expect?\u003c\/h3\u003e\n\u003cp\u003eExpect dependable starting across seasons, longer service life than typical flooded batteries, and maintenance-free operation thanks to the sealed AGM chemistry. Follow the included user guide for charging and troubleshooting to maximize longevity and safety.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eManufactured for up to 3× longer life versus standard flooded batteries\u003c\/li\u003e\n  \u003cli\u003eC20 capacity 66 Ah and MCA 1000 rating for robust performance metrics\u003c\/li\u003e\n  \u003cli\u003eMaintenance-free, spillproof design reduces upkeep needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for: The OPTIMA D27M BLUETOP® is aimed at boaters and RV owners who want reliable engine starts plus sustained accessory power without the fuss of routine maintenance. It suits vessels and rigs with moderate-to-high electrical demands—such as those running trolling motors, onboard electronics, refrigeration, or multiple accessories—where vibration resistance, compact sizing, and sealed, spillproof construction are important.\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the OPTIMA D27M BLUETOP® maintenance free?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — its sealed AGM design requires no watering and is maintenance-free under normal use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the D27M be mounted on its side or upside down?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the spillproof sealed construction allows mounting in virtually any position for flexible installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"OPTIMA","offers":[{"title":"Default Title","offer_id":48081465671838,"sku":"B001UFXHQI","price":559.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/optima-d27m-front-angled.jpg?v=1785805894","url":"https:\/\/northtrailauto.ca\/products\/optima-d27m-bluetop-boat-rv-dual-purpose-agm-battery-800-cca-66ah-spiralcell-sealed","provider":"North Trail Auto","version":"1.0","type":"link"}