{"product_id":"monster-marine-lithium-beast-2-0-12v-170ah-1500-cca-dual-purpose-cranking-battery","title":"Monster Marine Lithium 12V 170Ah Dual Purpose Cranking Battery – 1500 CCA Bluetooth \"Beast 2.0\"","description":"\u003cp style=\"font-size: 18px;\"\u003eThe Monster Marine Lithium \"Beast 2.0\" is a 12V 170Ah dual-purpose lithium (LiFePO4) cranking battery that starts your outboard and runs a full day of electronics from a single Group 31 case. It replaces a traditional 12V AGM or lead-acid starting battery, cuts weight out of the back of the boat, and holds steady voltage from the first cast to the last.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003eWith 1500 cold cranking amps for strong starts and 170 amp-hours of usable energy, the Beast 2.0 is built for anglers running heavy electronics packages multiple graphs, forward-facing sonar, 360 imaging, livewells, pumps, shallow-water anchors, and lights, without the voltage drop that lead-acid batteries suffer as the day goes on. It is well suited to bass boats, bay boats, center consoles, and tournament rigs where a standard starting battery struggles to keep up with the engine and a growing electronics load at the same time. Built-in Bluetooth lets you check state of charge and battery health on your phone through the MMLithium app.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe simple benefit: instead of choosing between a strong cranking battery and a large house battery for electronics, the Beast 2.0 is designed to handle both jobs from one high-capacity lithium battery starting the engine and running your electronics all day.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003eMonster Marine Lithium is an angler-founded company that builds LiFePO4 batteries for tournament and everyday fishing use, and its batteries are run in competition by MLF Bass Pro Tour pro Zack Birge. The Beast 2.0 is the redesigned version of their original Beast cranking battery, using Grade A LiFePO4 cells and an updated battery management system.\u003c\/p\u003e\n\u003c!-- ============ TAB 2: FEATURES AND BENEFITS ============ --\u003e\n\u003ch3\u003eFeatures and Benefits\u003c\/h3\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eOne battery for starting and electronics\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe Beast 2.0 delivers the high burst of current needed to start large outboards, plus 170Ah of deep-cycle capacity and up to 200A continuous discharge for your electronics. In many rigs that lets one battery do the work of a separate starting battery and house battery.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eNo voltage sag under load\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eUnlike lead-acid and AGM batteries, which lose voltage as they drain, LiFePO4 holds a stable voltage through most of its charge. That helps keep power steady to your graphs, sonar, and pumps deeper into the day, rather than tapering off the way lead-acid does as it runs down.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eSerious weight savings\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eAt 39 lbs, the Beast 2.0 weighs roughly half of a comparable Group 31 AGM battery. Taking that weight out of the stern can help with hole shot and handling, and makes the battery much easier to lift in and out.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eBluetooth monitoring\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe built-in Bluetooth module connects to the free MMLithium app so you can see voltage, state of charge, and battery health in real time from your phone, no separate gauge to wire in.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eAdvanced BMS protection\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eAn internal battery management system protects the cells against overcharge, over-discharge, over-current, high temperature, and short circuits, and balances the cells for consistent performance and long life.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eGroup 31 drop-in fitment\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe Beast 2.0 is built in a standard Group 31 case (13 × 6.8 × 8.66 in) and drops into a standard Group 31 tray. Combination top-post and M8 bolt terminals make it easy to connect factory cables or ring terminals.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eLong service life\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eRated for 4000+ charge cycles, LiFePO4 chemistry lasts far longer than lead-acid, which typically delivers a few hundred cycles before capacity fades.\u003c\/p\u003e\n\u003c!-- ============ TAB 3: COMPATIBILITY AND FITMENT ============ --\u003e\n\u003ch3\u003eCompatibility and Fitment\u003c\/h3\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eEngine compatibility\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eMonster Marine Lithium states the Beast 2.0 \u003cstrong\u003ehas been tested for over a year on a wide range of outboards, including Mercury Pro XS 4-stroke and 2-stroke, Mercury Verado 4-stroke, MerCruiser 4-stroke, Yamaha 4-stroke and SHO 4-stroke (older and newer), Yamaha HPDI, Suzuki 4-stroke, and Evinrude 2-stroke.\u003c\/strong\u003e MML also states the Beast 2.0 is built to meet and exceed Mercury Marine's latest lithium cranking specification bulletin.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003eOne point worth being clear on: testing by the battery maker is not the same as formal approval by your engine manufacturer. \u003cbr\u003e\u003cbr\u003eIt does not guarantee your engine's warranty will cover a related repair, and it does not confirm fitment for every horsepower and model year.\u003cbr\u003e\u003cbr\u003eBecause engine manufacturers set their own battery policies, always confirm your specific engine's requirements before switching to a lithium cranking battery. \u003cbr\u003e\u003cbr\u003eMercury Marine publishes a list of approved engines and minimum specifications for lithium starting batteries in its service bulletin; check that your engine is on that list. \u003cbr\u003e\u003cbr\u003eMercury's specification calls for a LiFePO4 cranking battery with at least 800 cranking amps, a maximum charge voltage of 14.8V, and an IP67 ingress rating. The Beast 2.0's 1500 CCA and 14.6V charge point fall within those cranking and charge-voltage limits. \u003cbr\u003e\u003cbr\u003eYamaha's published position is that it does not endorse lithium starting batteries for its outboards, and using one may affect engine warranty coverage on related components.\u003cbr\u003e\u003cbr\u003eIf your engine is under warranty, verify your engine maker's current guidance before installing any lithium cranking battery.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eElectronics it can run\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eWith 170Ah of capacity and up to 200A of continuous discharge, the Beast 2.0 is sized for boats running large electronics packages multiple graphs, forward-facing sonar such as LiveScope, Mega 360 imaging, shallow-water anchors, livewell and bilge pumps, and lighting, while still handling engine starting.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eApproximate runtime\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThese figures are rough estimates of how long a full 170Ah battery will run at a steady current draw. Real fishing loads vary as pumps, sonar, and displays cycle on and off, so treat these as a guide rather than a guarantee. On a dual-purpose battery, leave enough reserve to start the engine at the end of the day.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eSteady load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eApproximate runtime\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e10 A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAround 17 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAround 8.5 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e30 A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eAround 5.5 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eFitment\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe Beast 2.0 fits a standard Group 31 battery tray. Dimensions are 13 in long × 6.8 in wide × 8.66 in tall (330 × 173 × 220 mm). Terminals are a combination top-post and M8 bolt design.\u003c\/p\u003e\n\u003c!-- ============ TAB 4: CHARGING ============ --\u003e\n\u003ch3\u003eCharging\u003c\/h3\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eCharger requirements\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe Beast 2.0 charges to 14.6V. A LiFePO4-capable charger is the best choice. Monster Marine Lithium also states that its 12V batteries can be charged with a standard onboard AGM charger, provided the profile stays within the battery's 14.6V charge range and does not run an equalization or desulfation stage. Do not use a charger that exceeds this voltage.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eCharging from your engine\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eIf you plan to charge from your outboard's alternator while running, confirm your engine's regulated charging output falls within the battery's charge range and follow your engine manufacturer's guidance on charging lithium batteries. Mercury's lithium specification sets a maximum charge voltage of 14.8V and alternator limits for approved engines; staying within those limits protects both the battery and the charging system.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eFast recharge\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eLiFePO4 batteries accept a charge faster than lead-acid, so recovery time between trips is shorter. A higher-amperage lithium-capable charger will refill the battery more quickly; match charger amperage to how fast you need to turn the boat around.\u003c\/p\u003e\n\u003c!-- ============ TAB 5: SPECIFICATIONS ============ --\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eMML-15170JB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLithium Iron Phosphate (LiFePO4), Grade A cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e170Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEnergy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e2176 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCold cranking amps (CCA)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e1500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eContinuous discharge current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e200A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCharge voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e14.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCycle life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e39 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e13 × 6.8 × 8.66 in (330 × 173 × 220 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCase size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eGroup 31\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTerminal type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eTop post \u0026amp; M8 bolt combo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMonitoring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBuilt-in Bluetooth via MMLithium app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePrimary use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDual-purpose starting and deep-cycle, 12V marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUN\/DOT 38.3; UL listed cells; IEC 62133-2017; CE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5-year free replacement (tiered coverage through 15 years)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- ============ TAB 6: SAFETY AND CERTIFICATIONS ============ --\u003e\n\u003ch3\u003eSafety and Certifications\u003c\/h3\u003e\n\u003cp style=\"font-size: 18px;\"\u003eLithium Iron Phosphate (LiFePO4) is one of the most thermally stable lithium chemistries, which is why it is the standard choice for marine cranking and deep-cycle use. The Beast 2.0 uses Grade A LiFePO4 cells and an internal battery management system.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eBattery management system (BMS)\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe internal BMS protects the cells against overcharge, over-discharge, over-current, high temperature, and short circuits, and shuts the battery off to protect the cells if it detects unsafe operating conditions. It also balances the cells for consistent performance across the battery's life.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 18px;\"\u003eCertifications\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eMonster Marine Lithium states its batteries carry the following certifications and conform to the following safety and transport standards:\u003c\/p\u003e\n\u003cul style=\"font-size: 18px;\"\u003e\n\u003cli\u003eUN\/DOT 38.3 transport safety testing, including 49 CFR 172.704(a) \u0026amp; (3), IATA DGR 1.5.2 \u0026amp; 1.5.2.2(c), IMDG Code 1.3.1.2 \u0026amp; 1.3.1.4, and 29 CFR 1910.1200(h)(3)(i)-(iii)\u003c\/li\u003e\n\u003cli\u003eUL listed cells\u003c\/li\u003e\n\u003cli\u003eIEC 62133-2017 cell safety\u003c\/li\u003e\n\u003cli\u003eISO 9001:2008 quality management\u003c\/li\u003e\n\u003cli\u003eISO 14001:2004 environmental management\u003c\/li\u003e\n\u003cli\u003eCE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ============ TAB 7: FREQUENTLY ASKED QUESTIONS ============ --\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cstyle\u003e\n  .lbs-faq{max-width:100%;}\n  .lbs-faq details{border:1px solid #ddd; border-radius:6px; margin-bottom:10px; padding:0;}\n  .lbs-faq summary{cursor:pointer; padding:14px 16px; font-size:18px; font-weight:600; list-style:none; outline:none;}\n  .lbs-faq summary::-webkit-details-marker{display:none;}\n  .lbs-faq summary::after{content:\"+\"; float:right; font-weight:700;}\n  .lbs-faq details[open] summary::after{content:\"–\";}\n  .lbs-faq .lbs-answer{padding:0 16px 16px 16px; font-size:18px;}\n\u003c\/style\u003e\n\u003cdiv class=\"lbs-faq\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWill the Beast 2.0 work with my outboard engine?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eMonster Marine Lithium states the Beast 2.0 has been tested for over a year on a wide range of outboards, including Mercury Pro XS (4-stroke and 2-stroke), Mercury Verado, MerCruiser, Yamaha 4-stroke and SHO, Yamaha HPDI, Suzuki 4-stroke, and Evinrude 2-stroke. Engine manufacturers set their own battery policies, so confirm your specific engine's requirements before switching to a lithium cranking battery.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I use it on a Yamaha outboard?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eMonster Marine Lithium lists Yamaha 4-stroke, SHO, and HPDI among the engines it has tested the Beast 2.0 on. However, Yamaha's published position is that it does not endorse lithium starting batteries for its outboards, and using one may affect warranty coverage on related components. If your Yamaha is under warranty, contact Yamaha or your dealer for their current guidance before installing any lithium cranking battery.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eDoes it meet Mercury Marine's lithium specification?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eMonster Marine Lithium states the Beast 2.0 meets and exceeds Mercury Marine's latest lithium cranking specification bulletin. The battery's 1500 CCA and 14.6V charge point fall within Mercury's published minimum cranking and maximum charge-voltage requirements. Mercury approves lithium cranking batteries only for specific engines listed in its service bulletin, so confirm your engine is on that list before installing.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat does 1500 CCA mean on a lithium battery?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eCold cranking amps (CCA) is a rating that originated with lead-acid batteries, and it is provided here as a familiar cross-reference to the starting power you are used to. What matters in practice is that the Beast 2.0 delivers a strong burst to crank large outboards and sustains up to 200A of continuous discharge to run electronics while holding steady voltage instead of sagging the way lead-acid does as it drains.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan one battery both start my engine and run my electronics?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eYes. The Beast 2.0 is a dual-purpose battery designed to crank the engine and provide 170Ah of deep-cycle capacity for electronics. In many rigs it can replace both a separate starting battery and a 12V house battery. If you run an unusually large electronics load, you can add capacity by connecting a second battery in parallel.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eHow many graphs and electronics can it run?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eWith 170Ah of capacity and up to 200A of continuous discharge, the Beast 2.0 is sized for large electronics packages, including multiple graphs, forward-facing sonar such as LiveScope, Mega 360 imaging, shallow-water anchors, livewell and bilge pumps, and lighting, while still starting the engine. Actual runtime depends on how many devices you run and how hard you run them.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWill the BMS shut off and stop my motor while I'm running?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eThe Beast 2.0 uses an updated battery management system tuned for modern 4-stroke charging. The scenario anglers worry about is charging a lithium battery to 100 percent, then making a long run so the charging system keeps pushing voltage into a full battery. To avoid this, confirm your engine's regulated charging output stays within the battery's charge range, and follow your engine manufacturer's guidance for charging lithium batteries. If your engine is not approved for lithium cranking batteries, keep a lead-acid or AGM starting battery.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I charge it from my outboard's alternator?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eMany anglers charge lithium cranking batteries from the engine while running, but this depends on your engine. Confirm your alternator's regulated output voltage falls within the battery's 14.6V charge range and follow your engine manufacturer's guidance. Mercury's lithium specification sets a maximum charge voltage of 14.8V and alternator limits for its approved engines.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I charge it in cold weather?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eLike standard LiFePO4 batteries, the Beast 2.0 should not be charged below freezing, because charging cold cells can cause permanent damage. Discharging in the cold is not the concern charging is. Monster Marine Lithium's guidance for cold climates is to fully charge the battery before winter, remove it from the boat, and store it in a temperature-controlled space such as a house or garage, avoiding freezing temperatures. In areas that stay above freezing, you can leave it in place charged to 100 percent with the wiring disconnected. If you regularly need to charge in freezing conditions, warm the battery in a protected location first.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat charger do I need?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eA LiFePO4-capable charger is the best choice. Monster Marine Lithium also states that its 12V batteries can be charged with a standard onboard AGM charger, as long as the profile stays within the battery's 14.6V charge range and does not run an equalization or desulfation stage. Do not use a charger that exceeds this voltage. A higher-amperage lithium-capable charger will recharge the battery faster between trips.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eDoes it fit a standard Group 31 tray?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eYes. The Beast 2.0 is built in a Group 31 case measuring 13 × 6.8 × 8.66 in (330 × 173 × 220 mm) and drops into a standard Group 31 tray. It uses combination top-post and M8 bolt terminals.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I connect two in parallel?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eYes. Monster Marine Lithium states additional batteries can be added in parallel to increase capacity for higher electrical demand. Parallel wiring keeps the system at 12V while adding amp-hours.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eHow much lighter is it than my current battery?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eThe Beast 2.0 weighs 39 lbs, roughly half the weight of a comparable Group 31 AGM battery. Taking that weight out of the stern can help with hole shot and handling, and makes the battery much easier to lift.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eHow do I monitor the battery?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eThe Beast 2.0 has a built-in Bluetooth module that connects to the free MMLithium app, available for Apple and Android devices. The app shows voltage, state of charge, and battery health in real time, so you do not need a separate gauge.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs it waterproof, and what certifications does it carry?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eThe Beast 2.0 is built for the marine environment and uses an internal BMS for protection. Monster Marine Lithium states its batteries conform to UN\/DOT 38.3 transport safety testing and carry UL listed cells, IEC 62133-2017 cell safety, ISO 9001:2008, ISO 14001:2004, and CE. Mount the battery securely and keep terminal connections tight, as loose terminals can cause heat buildup.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat is the warranty?\u003c\/summary\u003e\n\u003cdiv class=\"lbs-answer\"\u003eThe strongest part of the coverage is the first 5 years: a defective battery is replaced with a new one at no cost, with no charge-cycle limit (you cover return shipping). This is not a full 15-year replacement warranty. After year 5, coverage is reduced years 5 to 10 are a repair tier with a 2,000-cycle limit and you pay shipping, and years 10 to 15 are prorated. Register the battery with Monster Marine Lithium after purchase to activate coverage. See our warranty page for full terms.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Monster Marine Lithium","offers":[{"title":"Default Title","offer_id":48368384442626,"sku":"MML-15170JB","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/3660\/5442\/files\/Monster_Lithium_12V_170Ah.webp?v=1787447840","url":"https:\/\/www.lithiumbatterysupply.com\/products\/monster-marine-lithium-beast-2-0-12v-170ah-1500-cca-dual-purpose-cranking-battery","provider":"Lithium Battery Supply","version":"1.0","type":"link"}