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PRECISE PHYSICAL SPECS & FITMENT: Dimensions: 6.89x3.43x6.10in (175x87x155mm). Direct drop-in replacement for YTX20L-BS 65989-97C GYZ20HL GYZ20L and ETX20L. Polarity: [- +]. Features vibration-isolated terminals and a rugged casing designed to withstand the heavy mechanical thumping and engine heat of high-performance American cruisers.
INTELLIGENT BMS & DIGITAL MONITORING: Integrated Battery Management System features an onboard Digital Readout LCD screen. Access real-time voltage telemetry and State-of-Charge (SOC) with a single touch. The BMS actively manages cell balancing while protecting against over-charge and deep discharge ensuring a stable 2500+ cycle life.
HARLEY CRUISER APPLICATIONS: Specifically optimized for Harley-Davidson models including Softail Fat Boy V-Rod Heritage Softail Classic and Night Train. The ultra-low self-discharge rate (<1% per month) ensures your bike remains road-ready even after several months of unattended winter storage outlasting traditional AGM batteries.
IP66 WATERPROOF & RUGGED DURABILITY: Fully sealed shock-proof housing with an IP66 rating provides total protection against torrential rain and road debris. Essential for long-distance touring on models like the Road King and Deluxe ensuring your electrical heart remains bone-dry and functional in all-weather environments and high-vibration conditions.
VOLTAGE & CHARGER COMPATIBILITY: Exclusively for vehicles with a qualified regulator delivering a stabilized output under 15.0V. For optimal longevity a charging voltage of 14.4V (0.2V) is highly recommended. Use ONLY dedicated LiFePO4 chargers; never use lead-acid chargers with desulfurization or pulse-repair modes to avoid damaging the BMS.
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