{"product_id":"attwood-90671-power-guard-vented-battery-box-group-27m-black","title":"Attwood 90671 Power Guard Vented Battery Box – Group 27M, Black","description":"\u003ch2\u003eAttwood 90671 Power Guard Vented Battery Box – Group 27M, Black\u003c\/h2\u003e\n\n\u003cp\u003eSecure your Group 27M marine battery with the Attwood 90671 Power Guard Battery Box. Built from acid-resistant polypropylene and compliant with ABYC standard E-10 and USCG Specification 183.420, this vented box is designed for flooded lead-acid batteries that require airflow to safely vent hydrogen gas during charging. Four enlarged cable openings (0.55\" diameter) provide clean routing for battery cables without tight bends, and large handles with rolled edges make the box easy to carry and position during installation.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFits Group 27M batteries\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented design\u003c\/strong\u003e — allows hydrogen gas to escape safely during charging of flooded lead-acid batteries\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour enlarged cable openings\u003c\/strong\u003e — 0.55\" diameter for clean, unrestricted cable routing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge handles with rolled edges\u003c\/strong\u003e — comfortable grip for carrying and positioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eABYC E-10 and USCG 183.420 compliant\u003c\/strong\u003e — meets OEM-installed battery hold-down standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAcid-resistant polypropylene construction\u003c\/strong\u003e — fully resistant to battery acid exposure\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMounting hardware included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBlack finish\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe 90671 vented box is the correct choice for flooded lead-acid (wet cell) batteries in Group 27M size — these batteries off-gas hydrogen during charging, and a vented enclosure is required for safe installation. The four enlarged cable openings are a practical feature that makes wiring cleaner and easier, particularly on boats where battery cables are thick or where the box is installed in a tight compartment. If you’re installing a sealed AGM or gel battery in Group 27M size, a non-vented box may be more appropriate — check the \u003ca href=\"\/products\/attwood-power-guard-battery-box-group-27-att-9067-1\"\u003eAttwood Power Guard Battery Box Group 27\u003c\/a\u003e for alternatives. For Group 24\/24M batteries, see the \u003ca href=\"\/products\/attwood-90651-standard-vented-battery-box-for-group-24-24m-black\"\u003eAttwood 90651 Vented Battery Box for Group 24\/24M\u003c\/a\u003e or the \u003ca href=\"\/products\/attwood-90691-standard-non-vented-battery-box-group-24-24m-black\"\u003eAttwood 90691 Non-Vented Battery Box for Group 24\/24M\u003c\/a\u003e. For Group 29\/31 batteries, see the \u003ca href=\"\/products\/attwood-90841-large-battery-box-black-vented-fits-group-29-31\"\u003eAttwood 90841 Large Vented Battery Box for Group 29\/31\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e 90671\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery Group:\u003c\/strong\u003e 27M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Openings:\u003c\/strong\u003e 4 × 0.55\" diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Acid-resistant polypropylene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e ABYC E-10, USCG 183.420\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e Mounting hardware included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51199410503716,"sku":"23-90671","price":39.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/23-90671_993545d6-7423-4a49-8be8-f9ddeb830100.jpg?v=1785604844","url":"https:\/\/marisolmarine.com\/products\/attwood-90671-power-guard-vented-battery-box-group-27m-black","provider":"Marisol Marine Company","version":"1.0","type":"link"}