{"product_id":"fullriver-dc40-12-12v-40ah-275cca-deep-cycle-agm-battery","title":"12V 40Ah Deep Cycle AGM Battery (DC40-12)","description":"\u003cdiv style=\"font-weight: 700;\"\u003e\n\n\u003ch2 style=\"color: #DD1D1D;\"\u003e🔋 FULLRIVER DC40-12 DEEP CYCLE AGM BATTERY\u003c\/h2\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e12V 40Ah Deep Cycle AGM Battery – 275CCA, M6 Terminals \u0026amp; Strong Reserve Capacity\u003c\/h3\u003e\n\n\u003cp\u003e⚡ Heavy-duty deep cycle power with reliable cranking support, strong reserve capacity and maintenance-free AGM construction.\u003c\/p\u003e\n\n\u003cp\u003eThe Fullriver DC40-12 is a premium 12V 40Ah Deep Cycle AGM battery engineered for demanding cyclic, standby and auxiliary power applications where durability, stored energy and consistent performance matter.\u003c\/p\u003e\n\n\u003cp\u003ePart of Fullriver’s trusted DC Series, the DC40-12 uses robust internal construction, heavier plates and increased lead content to support repeated cycling, strong reserve capacity and long service life.\u003c\/p\u003e\n\n\u003cp\u003eWith 40Ah capacity, 275CCA starting support, 320A CA \/ MCA and reserve capacity ratings of 53 minutes at 25A and 9 minutes at 75A, the DC40-12 is a versatile option for compatible marine, caravan, RV, golf car, floor-cleaning, backup, solar and auxiliary power systems.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e⚡ KEY FEATURES\u003c\/h3\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🔋 12V Deep Cycle AGM Performance\u003c\/span\u003e\u003cbr\u003e\nDesigned for dependable cyclic, standby and auxiliary power applications requiring reliable 12V energy storage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e⚡ 40Ah Capacity at 20HR Rate\u003c\/span\u003e\u003cbr\u003e\nProvides substantial stored energy for compatible equipment, battery banks and auxiliary electrical systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🚗 275CCA Starting Support\u003c\/span\u003e\u003cbr\u003e\nProvides useful cranking capability for compatible equipment requiring both deep cycle performance and engine-starting current.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e⚡ 320A CA \/ MCA\u003c\/span\u003e\u003cbr\u003e\nDelivers additional cranking capability for compatible equipment and marine applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e⏱️ 53-Minute Reserve Capacity at 25A\u003c\/span\u003e\u003cbr\u003e\nProvides strong reserve-energy performance for compatible 12V loads.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e💥 9-Minute Reserve Capacity at 75A\u003c\/span\u003e\u003cbr\u003e\nDemonstrates useful stored-energy capability even under significantly heavier discharge loads.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🔁 Built for Repeated Cycling\u003c\/span\u003e\u003cbr\u003e\nFullriver DC Series construction uses heavier plates and increased lead content to support reserve capacity and long cycle life.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🔒 Sealed AGM Construction\u003c\/span\u003e\u003cbr\u003e\nAbsorbed Glass Mat technology provides clean, dependable and non-spillable operation under normal conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🛠️ Maintenance-Free Design\u003c\/span\u003e\u003cbr\u003e\nNo routine electrolyte top-ups are required under normal operating conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🧯 Flame-Resistant ABS Case\u003c\/span\u003e\u003cbr\u003e\nDurable ABS plastic housing with a UL94-HB flame-resistance rating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #80FF00;\"\u003e🔌 M6 Terminal Connections\u003c\/span\u003e\u003cbr\u003e\nProvides secure electrical connections for compatible auxiliary, cyclic and starting systems.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e🔋 DEPENDABLE DEEP CYCLE PERFORMANCE\u003c\/h3\u003e\n\n\u003cp\u003eThe Fullriver DC40-12 is designed primarily for applications where the battery is regularly discharged and recharged during normal operation.\u003c\/p\u003e\n\n\u003cp\u003eIts 40Ah capacity at the 20-hour rate provides dependable stored energy for equipment, auxiliary systems, backup installations and other compatible cyclic applications.\u003c\/p\u003e\n\n\u003cp\u003eUnlike a conventional starting battery designed mainly for short bursts of high current, the DC40-12 is built to provide sustained energy delivery while still offering useful cranking support where required.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e🚗 DEEP CYCLE POWER WITH CRANKING SUPPORT\u003c\/h3\u003e\n\n\u003cp\u003eIn addition to its deep cycle capability, the DC40-12 provides 275CCA and 320A CA \/ MCA.\u003c\/p\u003e\n\n\u003cp\u003eThis gives the battery useful short-duration starting capability for compatible equipment requiring both stored energy and cranking performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #DD1D1D;\"\u003e⚠️ IMPORTANT: The DC40-12 is primarily a deep cycle AGM battery. Confirm the required cranking specification before selecting it for an engine-starting application.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e🔒 SEALED AGM TECHNOLOGY\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 uses Absorbed Glass Mat technology to retain electrolyte within the internal battery structure.\u003c\/p\u003e\n\n\u003cp\u003eThis sealed design provides maintenance-free operation and eliminates routine fluid top-ups under normal operating conditions.\u003c\/p\u003e\n\n\u003cp\u003eIts non-spillable construction makes it a practical option for compatible mobile, marine, standby and auxiliary installations.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e💪 FULLRIVER DC SERIES CONSTRUCTION\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 forms part of Fullriver’s DC Series of deep cycle AGM batteries.\u003c\/p\u003e\n\n\u003cp\u003eThe series uses heavier plates, increased lead content and carefully engineered internal components to support dependable cycling performance, reserve capacity and service life.\u003c\/p\u003e\n\n\u003cp\u003eThis robust construction makes the DC40-12 suitable for demanding applications where reliable repeated energy delivery is required.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e⏱️ STRONG RESERVE CAPACITY\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 provides useful reserve-energy performance at multiple discharge loads.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReserve capacity at 25A: 53 minutes\u003c\/li\u003e\n  \u003cli\u003eReserve capacity at 75A: 9 minutes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese ratings provide an additional indication of the battery’s stored-energy capability alongside its amp-hour capacity.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e📊 MULTIPLE CAPACITY RATINGS\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 provides different capacity ratings depending on the discharge rate.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCapacity at 5HR rate: 32.8Ah\u003c\/li\u003e\n  \u003cli\u003eCapacity at 20HR rate: 40.0Ah\u003c\/li\u003e\n  \u003cli\u003eCapacity at 72HR rate: 42.0Ah\u003c\/li\u003e\n  \u003cli\u003eCapacity at 100HR rate: 44.0Ah\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese ratings help indicate expected battery capacity across different load and discharge conditions.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e⚡ LOW INTERNAL RESISTANCE\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 has an internal resistance of approximately 7.00mΩ.\u003c\/p\u003e\n\n\u003cp\u003eLow internal resistance supports efficient energy transfer and helps the battery deliver current effectively under compatible cyclic and short-duration cranking loads.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e🔧 SUITABLE APPLICATIONS\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBoat and marine auxiliary power systems\u003c\/li\u003e\n  \u003cli\u003eCaravans and RV electrical systems\u003c\/li\u003e\n  \u003cli\u003eGolf car auxiliary applications\u003c\/li\u003e\n  \u003cli\u003eFloor cleaning machines\u003c\/li\u003e\n  \u003cli\u003eBackup and standby power systems\u003c\/li\u003e\n  \u003cli\u003eDeep cycle battery banks\u003c\/li\u003e\n  \u003cli\u003e12V auxiliary power systems\u003c\/li\u003e\n  \u003cli\u003eSolar power systems\u003c\/li\u003e\n  \u003cli\u003eOff-grid power installations\u003c\/li\u003e\n  \u003cli\u003eCompatible cyclic equipment\u003c\/li\u003e\n  \u003cli\u003eApplications requiring moderate cranking support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e📐 PRODUCT SPECIFICATIONS\u003c\/h3\u003e\n\n\u003cp\u003eBrand: Fullriver\u003c\/p\u003e\n\n\u003cp\u003eModel: DC40-12\u003c\/p\u003e\n\n\u003cp\u003eSeries: DC Series\u003c\/p\u003e\n\n\u003cp\u003eBattery type: Deep Cycle AGM\u003c\/p\u003e\n\n\u003cp\u003eNominal voltage: 12V\u003c\/p\u003e\n\n\u003cp\u003eCapacity at 5HR rate: 32.8Ah\u003c\/p\u003e\n\n\u003cp\u003eCapacity at 20HR rate: 40.0Ah\u003c\/p\u003e\n\n\u003cp\u003eCapacity at 72HR rate: 42.0Ah\u003c\/p\u003e\n\n\u003cp\u003eCapacity at 100HR rate: 44.0Ah\u003c\/p\u003e\n\n\u003cp\u003eCold Cranking Amps: 275A CCA\u003c\/p\u003e\n\n\u003cp\u003eCranking Amps \/ Marine Cranking Amps: 320A CA \/ MCA\u003c\/p\u003e\n\n\u003cp\u003eReserve capacity at 25A: 53 minutes\u003c\/p\u003e\n\n\u003cp\u003eReserve capacity at 75A: 9 minutes\u003c\/p\u003e\n\n\u003cp\u003eInternal resistance: 7.00mΩ\u003c\/p\u003e\n\n\u003cp\u003eGroup size: N\/A\u003c\/p\u003e\n\n\u003cp\u003eCase material: ABS plastic\u003c\/p\u003e\n\n\u003cp\u003eFlame-resistance rating: UL94-HB\u003c\/p\u003e\n\n\u003cp\u003eTerminal type: M6\u003c\/p\u003e\n\n\u003cp\u003eWeight: Approximately 13.6kg\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e📏 DIMENSIONS\u003c\/h3\u003e\n\n\u003cp\u003eLength: 198mm\u003c\/p\u003e\n\n\u003cp\u003eWidth: 166mm\u003c\/p\u003e\n\n\u003cp\u003eHeight: 174mm\u003c\/p\u003e\n\n\u003cp\u003eHeight including terminals: 174mm\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e📦 WHAT’S INCLUDED?\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 × Fullriver DC40-12 12V 40Ah Deep Cycle AGM Battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003e⚠️ FITMENT \u0026amp; COMPATIBILITY INFORMATION\u003c\/h3\u003e\n\n\u003cp\u003ePlease confirm the electrical, physical and charging requirements of your equipment before purchasing.\u003c\/p\u003e\n\n\u003cp\u003eCheck the required:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBattery voltage – 12V\u003c\/li\u003e\n  \u003cli\u003eBattery chemistry – AGM\u003c\/li\u003e\n  \u003cli\u003eBattery capacity\u003c\/li\u003e\n  \u003cli\u003ePhysical dimensions\u003c\/li\u003e\n  \u003cli\u003eTerminal type – M6\u003c\/li\u003e\n  \u003cli\u003eTerminal orientation and polarity\u003c\/li\u003e\n  \u003cli\u003eCharging profile\u003c\/li\u003e\n  \u003cli\u003eCranking-current requirement where applicable\u003c\/li\u003e\n  \u003cli\u003eAvailable installation space\u003c\/li\u003e\n  \u003cli\u003eCyclic, standby or auxiliary application requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"color: #DD1D1D;\"\u003e⚠️ IMPORTANT: Do not purchase based on capacity or dimensions alone. Terminal configuration, charging requirements, cranking needs and application suitability must also match your equipment.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2 style=\"color: #DD1D1D;\"\u003e❓ FREQUENTLY ASKED QUESTIONS\u003c\/h2\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat type of battery is the Fullriver DC40-12?\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 is a sealed 12V Deep Cycle AGM battery from Fullriver’s DC Series.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat is the battery capacity?\u003c\/h3\u003e\n\n\u003cp\u003eThe battery is rated at 40.0Ah at the 20-hour discharge rate.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat are the other capacity ratings?\u003c\/h3\u003e\n\n\u003cp\u003eThe supplied specifications list 32.8Ah at the 5-hour rate, 40.0Ah at the 20-hour rate, 42.0Ah at the 72-hour rate and 44.0Ah at the 100-hour rate.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eIs the DC40-12 a deep cycle battery?\u003c\/h3\u003e\n\n\u003cp\u003eYes. It is designed primarily for compatible cyclic, standby and auxiliary deep cycle applications.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eDoes the DC40-12 have a CCA rating?\u003c\/h3\u003e\n\n\u003cp\u003eYes. The battery is rated at 275CCA.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat is the CA \/ MCA rating?\u003c\/h3\u003e\n\n\u003cp\u003eThe supplied Cranking Amps \/ Marine Cranking Amps rating is 320A.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eCan the DC40-12 be used for engine starting?\u003c\/h3\u003e\n\n\u003cp\u003eThe battery provides 275CCA of starting capability, but it is primarily designed as a deep cycle AGM battery. Confirm that its cranking output meets the specific requirements of your engine or equipment before use.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat is the reserve capacity?\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 provides approximately 53 minutes of reserve capacity at a 25A load and approximately 9 minutes at a 75A load.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eIs the battery maintenance-free?\u003c\/h3\u003e\n\n\u003cp\u003eYes. Its sealed AGM construction means routine electrolyte top-ups are not required under normal operating conditions.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eIs the DC40-12 non-spillable?\u003c\/h3\u003e\n\n\u003cp\u003eYes. Its sealed AGM construction is designed to provide non-spillable operation under normal conditions.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eCan the DC40-12 be used in a caravan or RV?\u003c\/h3\u003e\n\n\u003cp\u003eYes, where the system requires a compatible 12V AGM deep cycle battery with matching capacity, dimensions, M6 terminals and charging profile.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eIs the DC40-12 suitable for marine applications?\u003c\/h3\u003e\n\n\u003cp\u003eIt may be suitable for compatible marine auxiliary and cyclic power applications where its voltage, capacity, terminal configuration and charging requirements match the system.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eCan it be used in golf car applications?\u003c\/h3\u003e\n\n\u003cp\u003eIt may be suitable for compatible golf car auxiliary applications requiring a 12V AGM battery with the correct capacity, dimensions, terminals and charging requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eCan the DC40-12 be used in a floor cleaning machine?\u003c\/h3\u003e\n\n\u003cp\u003eYes, where the machine requires a compatible 12V AGM deep cycle battery with matching physical and electrical specifications.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eCan this battery be used for solar or off-grid power?\u003c\/h3\u003e\n\n\u003cp\u003eYes. It may be suitable for compatible solar and off-grid systems designed around a 12V AGM battery and appropriate charging equipment.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eCan multiple DC40-12 batteries be used together?\u003c\/h3\u003e\n\n\u003cp\u003eMultiple batteries may be used in a correctly designed battery bank where the system, charger and wiring are configured appropriately. Batteries used together should be suitably matched and installed according to the equipment and battery-system requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat terminals does the DC40-12 use?\u003c\/h3\u003e\n\n\u003cp\u003eThe battery uses M6 terminals.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat are the battery dimensions?\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 measures approximately 198mm long, 166mm wide and 174mm high including the terminals.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eHow much does the battery weigh?\u003c\/h3\u003e\n\n\u003cp\u003eThe DC40-12 weighs approximately 13.6kg.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eWhat is the internal resistance?\u003c\/h3\u003e\n\n\u003cp\u003eThe supplied internal resistance specification is approximately 7.00mΩ.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eIs the battery case flame resistant?\u003c\/h3\u003e\n\n\u003cp\u003eYes. The ABS plastic case has a supplied UL94-HB flame-resistance rating.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eDo I need an AGM-compatible charger?\u003c\/h3\u003e\n\n\u003cp\u003eUse charging equipment suitable for sealed AGM battery chemistry and configured to the battery manufacturer’s recommended charging requirements.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #00AAFF;\"\u003eHow do I know if the DC40-12 will replace my existing battery?\u003c\/h3\u003e\n\n\u003cp\u003eCompare the required voltage, AGM chemistry, capacity, physical dimensions, M6 terminal configuration, charging profile and any cranking requirements with your existing battery and equipment specifications before purchase.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2 style=\"color: #DD1D1D;\"\u003e🔋 HEAVY-DUTY DEEP CYCLE POWER WITH STRONG RESERVE CAPACITY\u003c\/h2\u003e\n\n\u003cp\u003eChoose the Fullriver DC40-12 when you need dependable cycling performance, useful cranking support and maintenance-free AGM power for a demanding 12V system.\u003c\/p\u003e\n\n\u003cp\u003eWith 40Ah capacity, 275CCA starting support, 320A CA \/ MCA, 53-minute reserve capacity at 25A and robust Fullriver DC Series construction, the DC40-12 is a versatile choice for compatible marine, caravan, golf car, equipment, backup, solar and auxiliary power applications.\u003c\/p\u003e\n\n\u003cp\u003ePower your 12V system with dependable Fullriver deep cycle AGM performance.\u003c\/p\u003e\n\n\u003c\/div\u003e\n","brand":"FULLRIVER","offers":[{"title":"Default Title","offer_id":44010184966392,"sku":"DC40-12","price":234.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/9230\/4632\/files\/DC40-12-1-1440x1375.webp?v=1695265410","url":"https:\/\/www.homeof12volt.com.au\/products\/fullriver-dc40-12-12v-40ah-275cca-deep-cycle-agm-battery","provider":"Home of 12 Volt Northern","version":"1.0","type":"link"}