{"product_id":"millertech-12v-100ah-lithium-deep-cycle-marine-battery","title":"MillerTech 12V 100Ah Lithium Deep Cycle Marine Battery – Group 24","description":"\u003cdiv class=\"lbs-product\" style=\"font-size: 18px; line-height: 1.6; color: #1a1a1a;\"\u003e\n\u003c!-- ===================== TAB: Overview ===================== --\u003e\n\u003cp style=\"font-size: 18px;\"\u003eIf you fish all day or run electronics on the water, the MillerTech 12V 100Ah Sport Series ends the routine of nursing a dying battery. This maintenance-free LiFePO4 deep cycle battery delivers its full 100 amp hours of usable power and holds a steady voltage from the first cast to the last, so your trolling motor pulls the same at 4 p.m. as it did at sunrise. At about 26.55 lb, it weighs roughly half of a lead-acid Group 24, which both your back and your boat's performance will notice.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003eIt is built for anglers and boaters first: 12V trolling motors, fish finders, livewells, and boating electronics. It also works well beyond the water, in RV house-power banks, solar energy storage, tiny homes, kayaks, and shop backup power. Built-in Bluetooth lets you check state of charge, voltage, and battery health from your phone, while a smart BMS with low-temperature charge protection guards the cells automatically.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003eBecause it is a true deep cycle battery, it is made to be drained and recharged day after day, not to crank an engine. If you need engine starting plus house power, choose the MillerTech Dual Purpose model instead. For a straightforward, long-lasting upgrade from lead-acid or AGM, the Group 24 Sport Series is a proven, drop-in-friendly choice backed by a 10-year repair-or-replace warranty.\u003c\/p\u003e\n\u003c!-- ===================== TAB: Why Upgrade to Lithium ===================== --\u003e\n\u003ch4\u003eWhy Upgrade to Lithium\u003c\/h4\u003e\n\u003cp style=\"font-size: 18px;\"\u003eSwitching from a lead-acid or AGM battery to LiFePO4 changes how your day on the water actually feels. Here is what the upgrade gives you:\u003c\/p\u003e\n\u003cul style=\"font-size: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoughly half the weight.\u003c\/strong\u003e About 26.55 lb versus 50 to 65 lb for a typical lead-acid Group 24. Easier to carry, and less weight to push around the lake.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the whole battery.\u003c\/strong\u003e Lithium safely delivers close to its full 100Ah. A lead-acid battery is usually limited to about half its rating before you risk damaging it, so a 100Ah lithium gives you far more real, usable power.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo power fade.\u003c\/strong\u003e LiFePO4 holds a flat, steady voltage through the discharge, so your trolling motor keeps its speed late in the day instead of slowing down as the battery drops.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLasts far longer.\u003c\/strong\u003e Rated for 3,000+ charge cycles, compared with roughly 300 to 500 for many lead-acid batteries. Fewer replacements over the life of your boat.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-free.\u003c\/strong\u003e No watering, no acid checks, no cleaning corrosion off the posts. Charge it and go.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster, simpler charging.\u003c\/strong\u003e Recharge in hours with a lithium charger, and no memory effect if you top it off partway.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeace of mind.\u003c\/strong\u003e A built-in BMS protects against over-charge, over-discharge, and short circuits, and a 10-year repair-or-replace warranty stands behind it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ===================== TAB: Features \u0026 Benefits ===================== --\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul style=\"font-size: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 chemistry.\u003c\/strong\u003e A safe, stable lithium chemistry that runs cooler and lasts longer than lead-acid. Benefit: dependable power with a long service life.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull 100Ah (1,280Wh) usable capacity.\u003c\/strong\u003e Delivers close to the full rating. Benefit: more real runtime for trolling and electronics from a single battery.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Bluetooth monitoring.\u003c\/strong\u003e The MillerTech app shows state of charge, voltage, and health. Benefit: know exactly how much power you have left at a glance, no guessing.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart BMS protection.\u003c\/strong\u003e Manages voltage, current, and temperature, with protection against over-charge, over-discharge, and short circuit. Benefit: the battery protects itself so you do not have to babysit it.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-temperature charge protection.\u003c\/strong\u003e The BMS blocks charging in freezing conditions. Benefit: prevents cold-charging damage and extends battery life.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed IP65 marine case.\u003c\/strong\u003e A rugged, gasket-sealed case with a stainless steel breather vent mounted on top. Benefit: handles splashes, humidity, and vibration on the boat.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty M8 stainless steel terminals.\u003c\/strong\u003e Solid stainless posts designed to resist heat build-up. Benefit: secure, low-resistance connections for high-draw trolling motors.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S-4P expandability.\u003c\/strong\u003e Connect up to four in series and four in parallel. Benefit: scale up to 24V, 36V, or 48V systems, or add capacity for longer days.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-free design.\u003c\/strong\u003e No watering or acid service. Benefit: less upkeep and no corrosion to clean.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10-year repair-or-replace warranty.\u003c\/strong\u003e Long-term coverage with shipping paid both ways. Benefit: a low-risk, long-term investment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ===================== TAB: Applications ===================== --\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp style=\"font-size: 18px;\"\u003eThe Group 24 Sport Series is designed for continuous 12V deep cycle loads. It suits:\u003c\/p\u003e\n\u003cul style=\"font-size: 18px;\"\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eBass boats, aluminum boats, and fishing kayaks\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003e12V trolling motors (and 24V, 36V, or 48V systems when wired in series)\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eFish finders, flashers, sonar, and livewell pumps\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eRV house-power banks and 12V accessories\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eSolar energy storage and off-grid cabins\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eTiny homes and shop or garage backup power\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eGeneral 12V LiFePO4 replacement for lead-acid or AGM deep cycle batteries\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 18px;\"\u003eIt is not designed for engine starting. For cranking an outboard plus running house loads, choose the MillerTech Dual Purpose model.\u003c\/p\u003e\n\u003c!-- ===================== TAB: Runtime \u0026 Compatibility ===================== --\u003e\n\u003ch3\u003eRuntime \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"font-size: 18px;\"\u003e\u003cstrong\u003eEstimating runtime\u003c\/strong\u003e is simple: divide the usable capacity (about 100Ah) by the amps your device pulls. The table below shows rough estimates from a full charge. Real-world runtime varies with your speed setting, temperature, wind, current, and battery age.\u003c\/p\u003e\n\u003ctable style=\"font-size: 18px; width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eApprox. current draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eEstimated runtime\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical example\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e10A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e~10 hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eElectronics, low trolling speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e~5 hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eTrolling motor, light-to-medium use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e25A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e~4 hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eTrolling motor, medium setting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e30A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e~3.3 hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eTrolling motor, higher speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e50A\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e~2 hours\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eHeavy continuous load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 18px;\"\u003eBecause trolling motors draw far fewer amps at lower speeds, real fishing use, where you speed up and slow down, commonly stretches a single battery across a full day. Running at a steady high speed shortens it.\u003c\/p\u003e\n\u003cp style=\"font-size: 18px;\"\u003e\u003cstrong\u003eCompatibility at a glance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"font-size: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits a standard BCI Group 24 tray\u003c\/strong\u003e (10.23 x 6.61 x 8.35 inches).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V systems,\u003c\/strong\u003e with series wiring for 24V, 36V, or 48V trolling motors and parallel wiring for more capacity (up to 4S-4P).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharging:\u003c\/strong\u003e use a lithium (LiFePO4) charger with a 14.6V profile. A standard lead-acid or AGM charger is not recommended because desulfation and equalization modes can apply voltages the battery is not built to accept.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator charging\u003c\/strong\u003e is supported when the alternator's maximum output does not exceed 14.6V. Verify your output before connecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar and inverter systems:\u003c\/strong\u003e compatible with standard 12V LiFePO4 charge settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot for engine cranking.\u003c\/strong\u003e This is a deep cycle battery; use the Dual Purpose model for starting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 18px;\"\u003e\u003cstrong\u003eRecommended MillerTech chargers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"font-size: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V 10A (1210C):\u003c\/strong\u003e most economical; full charge in about 10 to 12 hours. Good for overnight or lighter daily use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V 20A (1220C):\u003c\/strong\u003e nearly twice as fast at about 5 to 6 hours. A strong pick for shop, RV, and solar use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12V 20A On-Board (1220M):\u003c\/strong\u003e permanently mounted and IP65 waterproof. Plug into shore power after each trip. The top pick for on-board marine setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-bank and Dark Speed on-the-run chargers:\u003c\/strong\u003e for boats with several batteries, charge a whole bank from one plug, or top off a 12V bank plus a 24V or 36V trolling bank while you run.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- ===================== TAB: Specifications ===================== --\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"font-size: 18px; width: 100%; border-collapse: collapse; line-height: 1.5;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eChemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eLithium Iron Phosphate (LiFePO4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e100Ah (1,280Wh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Charge Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e14.6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Continuous Charge \/ Discharge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003ePeak Discharge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e300A (5 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLow-Voltage Cutoff\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eRound-Trip Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e98%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e32°F to 130°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLow-Temp Charge Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eYes (BMS blocks charging below freezing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMaintenance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eMaintenance-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCycle Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e3,000+ cycles at 100% depth of discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCell Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003ePrismatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBMS\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eBuilt-in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eConnection Capability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eUp to 4S-4P (four in series, four in parallel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBluetooth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eYes (MillerTech app, iOS and Android)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTerminal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eM8 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eIP Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eIP65 (sealed marine case with stainless steel breather vent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eANSI\/CAN\/UL 1973:2022, Edition 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eGroup Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003eBCI Group 24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (L x W x H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e10.23\" x 6.61\" x 8.35\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e26.55 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e12100G24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ddd;\"\u003e10-year repair or replace\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- ===================== TAB: FAQ ===================== --\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n    .lbs-faq{max-width:100%;margin:0;}\n    .lbs-faq .lbs-faq-item{border-bottom:1px solid #e2e2e2;}\n    .lbs-faq input[type=\"checkbox\"]{position:absolute;opacity:0;height:0;width:0;}\n    .lbs-faq label{display:block;cursor:pointer;padding:16px 40px 16px 4px;position:relative;\n      font-size:18px;font-weight:600;line-height:1.4;color:#1a1a1a;}\n    .lbs-faq label::after{content:\"+\";position:absolute;right:8px;top:14px;font-size:24px;\n      font-weight:400;line-height:1;color:#666;transition:transform .2s ease;}\n    .lbs-faq input[type=\"checkbox\"]:checked + label::after{content:\"\\2212\";}\n    .lbs-faq .lbs-faq-answer{max-height:0;overflow:hidden;transition:max-height .25s ease;}\n    .lbs-faq input[type=\"checkbox\"]:checked ~ .lbs-faq-answer{max-height:1400px;}\n    .lbs-faq .lbs-faq-answer p{font-size:18px;line-height:1.6;padding:0 4px 16px;margin:0;color:#333;}\n  \u003c\/style\u003e\n\u003cdiv class=\"lbs-product\" style=\"font-size: 18px; line-height: 1.6; color: #1a1a1a;\"\u003e\n\u003cdiv class=\"lbs-faq\"\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-1\"\u003e \u003clabel for=\"lbs-faq-1\"\u003eWill this run my trolling motor, and for how long?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eYes. Runtime depends on your speed setting. As a guide, a 12V trolling motor drawing about 25A at a medium setting runs roughly 4 hours at that draw from a full 100Ah battery, and typical on-and-off fishing use often stretches that across a full day. Wind, current, and higher speeds shorten it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-2\"\u003e \u003clabel for=\"lbs-faq-2\"\u003eCan I use this battery to start my outboard motor?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eNo. This is a deep cycle battery made to run continuous loads like a trolling motor and electronics, not to crank an engine. For starting an outboard, use a battery rated for cranking, such as the MillerTech Dual Purpose model.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-3\"\u003e \u003clabel for=\"lbs-faq-3\"\u003eWhy upgrade from lead-acid or AGM to lithium?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eLithium gives you roughly half the weight, close to the full 100Ah as usable power (versus about half on lead-acid), steady voltage with no power fade, far more charge cycles, maintenance-free operation, and faster charging. It costs more up front but typically lasts much longer, which lowers the cost over the life of your boat.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-4\"\u003e \u003clabel for=\"lbs-faq-4\"\u003eCan I use my existing lead-acid or AGM charger?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eWe recommend a lithium (LiFePO4) charger set to a 14.6V profile. Standard lead-acid and AGM chargers often include desulfation or equalization stages that apply voltages this battery is not designed to accept, so a lithium-specific charger is the safe choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-5\"\u003e \u003clabel for=\"lbs-faq-5\"\u003eWhich MillerTech charger should I get?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eFor a boat, the 12V 20A On-Board (1220M) is the top pick because it mounts permanently and is IP65 waterproof. For shop, RV, or solar use, the 12V 20A (1220C) recharges in about 5 to 6 hours, or the 12V 10A (1210C) is the economical overnight option. For multiple batteries, MillerTech multi-bank and Dark Speed on-the-run chargers handle a full bank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-6\"\u003e \u003clabel for=\"lbs-faq-6\"\u003eCan I charge it in cold weather?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eThe battery can be discharged in the cold, but the BMS blocks charging when the battery is at or below freezing to protect the cells. If you need to charge in sub-freezing temperatures, choose the MillerTech Heated model, which warms itself before charging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-7\"\u003e \u003clabel for=\"lbs-faq-7\"\u003eCan I wire several together for a 24V, 36V, or 48V trolling motor?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eYes. This battery supports up to a 4S-4P configuration. Connect up to four in series for higher-voltage systems such as 24V, 36V, or 48V, and up to four in parallel to increase capacity for longer runtime. Use matching batteries and follow the wiring guidance in the product manual.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-8\"\u003e \u003clabel for=\"lbs-faq-8\"\u003eIs this a drop-in replacement for my lead-acid battery?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eYes, for deep cycle use. It is the same 12V nominal voltage and fits a standard Group 24 tray. Plan to add a lithium charger, and remember it is a deep cycle battery, so it is not a substitute for a cranking battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-9\"\u003e \u003clabel for=\"lbs-faq-9\"\u003eCan I charge it from my outboard alternator?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eAlternator charging is supported when the alternator's maximum output does not exceed 14.6V. Confirm your alternator's output voltage and use proper connections before charging this way.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-10\"\u003e \u003clabel for=\"lbs-faq-10\"\u003eIs it waterproof?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eThe case is sealed to an IP65 marine rating and includes a stainless steel breather vent on top, so it handles the splashes, humidity, and vibration common on a boat. It is water resistant, not meant to be submerged.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-11\"\u003e \u003clabel for=\"lbs-faq-11\"\u003eDoes the Bluetooth app work with more than one battery?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eYes. The MillerTech app connects to multiple batteries so you can monitor state of charge, voltage, and health for a whole bank from one screen. It is available for iOS and Android.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-12\"\u003e \u003clabel for=\"lbs-faq-12\"\u003eIs it maintenance-free?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eYes. There is no watering, no acid to check, and no corrosion to clean off the posts. Charge it with a lithium charger and it is ready to go.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-13\"\u003e \u003clabel for=\"lbs-faq-13\"\u003eHow much does it weigh and what size is it?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eThe Group 24 case measures 10.23 x 6.61 x 8.35 inches and weighs about 26.55 lb, roughly half the weight of a comparable lead-acid battery of the same capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lbs-faq-item\"\u003e\n\u003cinput type=\"checkbox\" id=\"lbs-faq-14\"\u003e \u003clabel for=\"lbs-faq-14\"\u003eHow long will it last, and what does the warranty cover?\u003c\/label\u003e\n\u003cdiv class=\"lbs-faq-answer\"\u003e\n\u003cp\u003eThe cells are rated for 3,000+ charge cycles even at full 100% depth of discharge, and many more at lighter use. It is backed by a 10-year repair-or-replace warranty, with MillerTech covering shipping both ways for warranty service.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ===================== FAQPage JSON-LD ===================== --\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Millertech","offers":[{"title":"Default Title","offer_id":48292093559042,"sku":"12100G24","price":679.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0723\/3660\/5442\/files\/Millertech_12V_100Ah_Deep_Cycle.png?v=1786322924","url":"https:\/\/www.lithiumbatterysupply.com\/products\/millertech-12v-100ah-lithium-deep-cycle-marine-battery","provider":"Lithium Battery Supply","version":"1.0","type":"link"}