Parts Unlimited 2113-0943 Lithium LiFePO4 Battery LFP03-B – 170 CCA – Ultra Lightweight Off‑Road Motorcycle Battery

OVERVIEW

The Parts Unlimited LFP03-B lithium battery delivers consistent starting power for modern off-road motorcycles, eliminating unnecessary chassis weight while maintaining reliable ignition voltage. Constructed with Lithium Iron Phosphate chemistry and fully sealed lead-free casing, this ultra-lightweight unit serves as a direct replacement for aging lead-acid packs on trail bikes and motocross rigs.

ENGINEERING & PERFORMANCE

Advanced LiFePO4 chemistry sustains stable voltage curves during repeated hard-starting sequences, ensuring immediate cranking power under heavy engine compression. The completely sealed, acid-free enclosure resists vibration damage and eliminates spill hazards, allowing secure mounting in mud-laden or rugged terrain. Built-in rapid recovery capabilities enable up to ninety percent capacity restoration in approximately six minutes when connected to high-amperage charging systems.

KEY FEATURES

• Lithium-Ion / LiFePO4 chemistry for consistent energy release and faster recovery
• 170 cold-cranking amps for dependable ignition under compression
• Ultra-lightweight design at 1.2 lb, providing significant mass reduction
• Rapid charge restoration reaching ninety percent capacity within six minutes
• Fully sealed, maintenance-free enclosure free of liquid electrolytes and corrosive acids
• Certified lifespan exceeding one thousand recharge cycles under JISD testing standards
• Positive terminal positioned on the left post with negative on the right
• Toxicity-safe formulation containing zero heavy metals

TECHNICAL SPECIFICATIONS

• Brand: Parts Unlimited
• Part Name: LFP03-B Battery (Part Number: 2113-0943)
• Component Type: Lithium-Ion / LiFePO4 Starter Battery
• Construction: Fully Sealed Lithium Iron Phosphate Casing
• Supported Years: 2023–2024
• Compatible Trims: Yamaha YZ450F, YZ450FX, YZ250FX

FITMENT

• Yamaha YZ450F (2023–2024)
• Yamaha YZ450FX (2023–2024)
• Yamaha YZ250FX (2023–2024)

WHY RIDERS CHOOSE THIS

Off-road builders select the LFP03-B because shedding traditional lead plates sharpens steering input and allows rear suspension to fully articulate beneath heavy rider loads. The lithium formula maintains steady electrical distribution throughout long competition runs while permanently eliminating wiring harness corrosion from sulfuric acid. Verified cycle life and rapid mid-session recharging remove unexpected downtime, keeping race day prep predictable. These engineered advantages directly address the confined engine compartments and high current demands of Yamaha’s recent YZ platform, establishing it as a preferred long-term starter solution.