OVERVIEW
The BS Battery BSLi‑12 Max delivers consistent 900A cold-cranking power to reliably start engines on heavy-duty touring motorcycles, UTVs, and high-compression ATVs. Built with advanced Lithium Iron Phosphate (LiFePO4) chemistry and premium brass terminals sealed with silicone, this 12V unit replaces conventional flooded and AGM batteries. Designed as a direct drop-in upgrade for heavyweight platforms, it minimizes downtime while delivering stable electrical distribution across extended rides and demanding off-road terrain.
ENGINEERING & PERFORMANCE
This lithium powersports battery utilizes stable LiFePO4 cells to maintain steady voltage output under extreme loads, preventing sluggish ignition events even when powering sensitive electronic fuel injection systems. The sealed internal assembly resists corrosion and contains no acid or toxic metals, eliminating leak risks during transport or trail riding. With a thermal-stable architecture rated for continuous operation at temperatures reaching 446°F, the unit protects against structural degradation while supporting ultra-fast charging cycles. Its low self-discharge rate ensures the cell remains fully prepared after months of seasonal storage.
KEY FEATURES
- Massive 900A cold cranking amps (CCA) for extreme starting performance
- Premium LiFePO4 lithium chemistry for clean, leak-free, and acid-free energy
- 12V / 18Ah capacity with over 2000 cycle life for long-term durability
- Weighs only 6.6 lb, delivering up to 70% weight reduction over traditional lead-acid designs
- Built-in state-of-charge indicator for effortless monitoring
- Premium brass terminals with integrated silicone sealing for secure connections
- Multi-position mounting capability for flexible installation configurations
- Highly durable construction with exceptional vibration resistance
- Heat-resistant operation rated up to 446°F with fast charging capability
- Maintenance-free, sealed design containing no acids or heavy metals
TECHNICAL SPECIFICATIONS
- Brand: BS Battery
- Part Name: BSLi‑12 Max Lithium LiFePO4 Battery
- Component Type: Lithium Battery (LiFePO4)
- Material: Lithium Iron Phosphate chemistry with brass terminals and silicone sealing
- Supported Years: 1973–2025
- Compatible Trims: Compatible with select Harley-Davidson models (Street Glide, Road King, Electra Glide, Road Glide, Freewheeler), BMW models (R-series, K-series, RS/RT/Four cylinders), CFMOTO models (ZFORCE, CFORCE, UFORCE, C-FORCE), Polaris models (Sportsman, Ranger, Scrambler, ACE), Arctic Cat models (Prowler series), and Ducati models (GT 860, GTS 860, SD Darmah MHR).
FITMENT
- Harley-Davidson Street Glide / Special (2006–2021)
- Harley-Davidson Road King / Classic / Custom / EFI (1988–2021)
- Harley-Davidson Electra Glide Classic / Limited / Ultra (1997–2023)
- Harley-Davidson Trike Convertibles (Freewheeler, Tri Glide (2009–2022)
- Twin CVO Trail Ride Limited (2020–2023)
- BWM R100GS / R80GS Paris-Dakar (1990–1995)
- BWM R100RS / RS (1983–1992)
- BWM K100LT / RT / Four (1985–1991)
- BWM K75RT / S / C (1986–1995)
- CFMOTO ZFORCE 800/EX/EPS/TRAIL (2012–2024)
- CFMOTO CFORCE 400/600/Touring (2015–2025)
- CFMOTO UFORCE 600/1000/XL (2021–2024)
- Polaris Sportsman 500/600/800/XE/XT (1999–2023)
- Polaris Ranger 500/800/900 XP (2006–2023)
- Polaris Scrambler 500/1000 XP (2014–2023)
- Arctic Cat Prowler Pro EPS/XT/Crew (2020–2023)
- DuCATI GT 860/GTS 860/SD Darmah (1973–1979)
- BWM R60/6 / R75/7 / R90/S (1973–1997)
WHY RIDERS CHOOSE THIS
Riders consistently upgrade to this lithium unit because its massive 900A CCA rating eliminates slow ignition events and keeps heavy touring rigs firing instantly, regardless of ambient temperature. The lightweight LiFePO4 core and acid-free sealed casing allow it to handle road vibration and prolonged highway cruising without leaking or degrading, while the built-in charge monitor removes guesswork during daily maintenance. Premium brass connectors paired with silicone sealing ensure that sensitive EFI modules and lighting arrays receive unwavering voltage, preventing electrical dropout mid-ride. As a direct-dimension drop-in replacement, it slashes platform weight by up to 70% without compromising the physical mounting footprint, making it a highly practical upgrade for vintage motorcycles and modern heavyweight utility vehicles alike.
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