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    Brand Name : WNRLN
    Model Number : MR-12100-LFP
    Certification : CE, UN38.3, MSDS, ISO 9001:2015, ABYC
    Price : USD 280-420 / Piece
    Payment Terms : T/T, L/C, PayPal, Western Union
    Supply Ability : 3000 Pieces per Month
    Delivery Time : 5-7 working days stock, 15-25 days production
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    Why Your 100Ah Lead-Acid Is Really a 50Ah Battery

    The WNRLN MR-12100-LFP 12V 100Ah LiFePO4 Marine Battery delivers 90Ah of usable energy — 80% more runtime for your trolling motor, fish finder, and onboard electronics.


    The Lead-Acid Problem

    • 50% Usable Capacity: A 100Ah lead-acid battery can only be discharged to 50% before voltage collapse — effectively a 50Ah battery
    • Voltage Sag: Below 50% charge, trolling motor thrust fades and electronics flicker
    • Off-Season Death: Lead-acid sulfates during winter storage — lithium self-discharges under 2% per month
    • Weight Penalty: 100Ah lead-acid weighs 28-32 kg vs 12.5 kg for lithium — 2.5x heavier

    Why WNRLN MR-12100-LFP

    • 90Ah Usable from 100Ah Rating: LiFePO4 allows 90% depth of discharge — 80% more runtime than lead-acid
    • 5,000+ Deep Cycles: At 50 fishing trips per year, this battery outlasts your boat
    • IP67 Fully Sealed: Submersion-rated marine-grade aluminum enclosure with stainless steel terminals
    • 4S 100A Smart BMS: Low-voltage cutoff, over-current and short-circuit protection
    • ABYC Compliant: Meets American Boat and Yacht Council standards for lithium battery installation

    Application Scenarios

    ScenarioWhy MR-12100-LFP
    Trolling Motor90Ah usable = 6-8 hours continuous trolling at medium speed — 80% longer than lead-acid
    Sailboat House BankPowers navigation, lighting, refrigeration, autopilot — decades of liveaboard service
    Bass Boat ElectronicsStable 12.8V keeps fish finders, GPS, livewell pumps running all day without voltage sag
    Marine AuxiliaryDedicated power for windlass, bow thruster, dinghy motor — saves 20 kg vs lead-acid

    Technical Specifications

    ParameterSpecification
    Battery TypeLiFePO4
    Nominal Voltage12.8V (12V nominal)
    Capacity / Energy100Ah / 1280 Wh
    Usable Capacity90Ah (90% vs 50% lead-acid)
    Cycle Life5,000+ cycles
    BMS4S 12V 100A Smart BMS
    WaterproofIP67
    Weight12.5 kg
    Dimensions330 x 175 x 220 mm

    FAQ

    Q: How is 90% usable different from lead-acid?
    A: A 100Ah lead-acid battery can only be discharged to 50% (50Ah usable) before voltage drops below 11.5V. The MR-12100-LFP delivers 90Ah usable — effectively 80% more runtime from the same Ah rating.

    Q: Can I use this with my existing marine charger?
    A: We recommend a 12V 20A LiFePO4 smart charger. Standard lead-acid chargers with desulfation modes can damage lithium cells. Charger add-on: USD 65 with bulk orders.

    Q: Warranty?
    A: 3-year standard. CE, UN38.3, MSDS certified. ABYC compliant design.


    Ready for 80% more fishing time per charge? Contact us for bulk pricing and sample evaluation.

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