{"product_id":"victron-battery-diode-80a-combiner-2-batteries","title":"Victron Energy - 12\/24V - 80A - Battery Diode Combiner | 2 Batteries","description":"\u003ch2\u003eVictron 80A Diode Battery Combiner: Reliable Dual-Battery Isolation for Critical DC Systems\u003c\/h2\u003e\n\u003ch3\u003eContinuous Power for Mission-Critical Equipment\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eVictron 80A Diode Battery Combiner\u003c\/strong\u003e (model BCD 802) is engineered to maintain uninterrupted DC power to essential electronics, such as engine control units, navigation systems, and communication gear. By allowing two independent battery banks to feed a common load through high-efficiency Schottky diodes, this unit ensures that a failure in one battery source will not compromise the supply to your critical equipment. Whether you're operating a commercial vessel, an off-grid power system, or a remote monitoring station, this combiner provides the redundancy needed to keep vital systems online.\u003c\/p\u003e\n\u003cp\u003eUnlike basic relay-based isolators, the diode design offers instantaneous, maintenance-free switching with no moving parts. The low forward voltage drop—approximately 0.3 V at low current and 0.45 V at the full 80 A rating—minimises energy loss while preserving isolation between battery banks. This makes it an ideal solution for \u003cstrong\u003e12 V and 24 V DC systems\u003c\/strong\u003e where reliability is non-negotiable.\u003c\/p\u003e\n\u003ch3\u003eSchottky Diode Technology: Efficiency and Thermal Management\u003c\/h3\u003e\n\u003cp\u003eAt the core of the combiner are \u003cstrong\u003eSchottky diodes\u003c\/strong\u003e, selected for their exceptionally low forward voltage characteristics. This reduces heat generation compared to standard silicon diodes, allowing the unit to sustain an \u003cstrong\u003e80 A continuous current\u003c\/strong\u003e without active cooling. The integrated aluminium heat sink with cooling fins dissipates thermal energy effectively, even in confined installations. For optimal safety, the combiner must be mounted on a non-flammable surface, as the enclosure can reach elevated temperatures during high-load operation.\u003c\/p\u003e\n\u003cp\u003eThe robust metal housing and blue anodised finish provide durability in harsh environments, including marine engine rooms and industrial enclosures. Pre-slotted mounting holes enable secure vertical or horizontal installation, while the M6 bolt terminals (approx. 1\/4\"-20) accept heavy-duty ring lugs for reliable, low-resistance connections.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80 A continuous current rating\u003c\/strong\u003e for demanding DC loads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-battery input\u003c\/strong\u003e with isolated diode paths prevents back-feeding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow voltage drop\u003c\/strong\u003e (0.3 V at low current, 0.45 V at rated output) maximises available voltage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSchottky diode design\u003c\/strong\u003e reduces heat and improves efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated aluminium heat sink\u003c\/strong\u003e for passive thermal management\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM6 bolt terminals\u003c\/strong\u003e (approx. 1\/4\"-20) for secure, high-current connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint\u003c\/strong\u003e (60 x 120 x 75 mm) suits space-constrained installations\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompatible with 12 V and 24 V nominal battery systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications Where Redundancy Matters\u003c\/h3\u003e\n\u003cp\u003eThis diode combiner is purpose-built for scenarios where power continuity is critical. Common use cases include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine electronics\u003c\/strong\u003e: Supply navigation lights, GPS, and autopilots from two battery banks without risk of cross-drain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency and safety systems\u003c\/strong\u003e: Keep fire alarms, bilge pumps, and communication radios powered even if one battery fails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-grid and remote installations\u003c\/strong\u003e: Combine solar-charged and generator-backed battery banks for uninterrupted DC supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle and heavy equipment\u003c\/strong\u003e: Isolate starter and auxiliary batteries while sharing a common load like a winch or hydraulic pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBy eliminating single points of failure in your DC power architecture, the Victron BCD 802 reduces the risk of unexpected downtime and protects sensitive electronics from voltage transients that can occur with relay-based combiners.\u003c\/p\u003e\n\u003ch3\u003eInstallation and Safety Considerations\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: connect each battery bank to the designated input terminals and the load to the common output. The diode arrangement inherently blocks reverse current, so no additional switching or control wiring is required. However, due to the heat generated at full load, the unit must be mounted on a non-flammable surface with adequate ventilation. The compact dimensions (60 x 120 x 75 mm) and lightweight design (0.8 kg) allow flexible placement in electrical panels or bulkhead mounts.\u003c\/p\u003e\n\u003cp\u003eFor optimal performance, use appropriately sized cables and ensure all connections are torqued to the M6 terminal specifications. The combiner is rated for both 12 V and 24 V systems, making it versatile across a range of DC architectures.\u003c\/p\u003e\n\u003ch3\u003eSecure Your Critical Power Path\u003c\/h3\u003e\n\u003cp\u003eWhen power continuity is essential, trust the Victron 80A Diode Battery Combiner to deliver reliable isolation and uninterrupted DC supply. \u003cstrong\u003eAdd the BCD 802 to your system today\u003c\/strong\u003e and ensure your mission-critical equipment stays online, no matter what.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"product-specifications\" style=\"width:100%; border-collapse:collapse; border:1px solid #d9d9d9; table-layout:auto;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eMaximum Continuous Current\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003e80 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eNumber of Batteries\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eNominal Battery Voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003e12 V and 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eConnection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003eM6 Bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003e0.8 kg (1.8 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eDimensions H x W x D\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003e60 x 120 x 75 mm (2.4 x 4.7 x 3.0 inches)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eVoltage Drop at Low Current\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003eApproximately 0.3 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border:1px solid #d9d9d9; padding:8px; text-align:left; width:35%; vertical-align:top;\"\u003eVoltage Drop at Rated Output\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #d9d9d9; padding:8px; vertical-align:top;\"\u003eApproximately 0.45 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Victron","offers":[{"title":"Default Title","offer_id":52364326830363,"sku":"Vic-BCD000802000","price":76.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0854\/3354\/9083\/files\/Vic-BCD000802000-01.jpg?v=1781657713","url":"https:\/\/www.nbcampingequipment.com.au\/products\/victron-battery-diode-80a-combiner-2-batteries","provider":"NB Camping Equipment","version":"1.0","type":"link"}