Motobatt Battery MBT14B4 Sealed Factory‑Activated Replaces: YT14B‑4, YT14B‑BS

OVERVIEW

Motobatt’s MBT14B4 is a sealed AGM battery designed to deliver reliable cranking power and stable voltage output for motorcycle electrical systems. Factory-activated and fully enclosed, this maintenance-free unit eliminates water-fill chores while providing consistent performance across varied riding conditions. Built as a direct fit for select Yamaha and Hyosung platforms, it replaces traditional lead-acid starters without requiring bracket or wiring modifications.

ENGINEERING & PERFORMANCE

This sealed AGM battery provides rapid ignition and stable operation under heavy electrical loads thanks to its 13 amp-hour capacity and 175 cold cranking amps. Reinforced internal plates paired with a vibration-dampening casing ensure consistent power delivery even during chronic engine oscillation or high-g impacts. The factory-activated design requires zero electrolyte monitoring or equalization, allowing it to drop straight into stock mounting locations without altering frame rails or harnesses.

KEY FEATURES

• Factory-activated sealed AGM chemistry eliminates routine watering and acid top-offs
• QuadFlex terminal design provides four accessible connection points per post for flexible cable routing
• Maintains exact OEM footprint dimensions of 5.91 x 2.76 x 5.72 inches (150 x 70 x 145 mm)
• Reinforced internals engineered to endure high-vibration environments and thermal fluctuations
• Serves as a precise direct cross-reference for Yuasa and Power-Max equivalents
• Voltage remains stable during heavy cycling loads and extended stationary storage
• Compatible with standard 12-volt motorcycle charging architectures

TECHNICAL SPECIFICATIONS

• Brand: Motobatt
• Part Name: MBT14B4
• Component Type: Motorcycle Battery
• Material Construction: AGM (Absorbent Glass Mat) / Sealed Lead-Acid Equivalent
• Supported Years: 1999–2009 (model-dependent)
• Compatible Trims: YAMAHA FJR1300, XV1600 Road Star, XV1700P Road Star Warrior, XVS1100 V-Star, FZS1000 FZ1, Roadliner, Stratoliner; HiCOSUNG MOTO GV650, SE

FITMENT

• YAMAHA FJR1300 (2003–2009)
• YAMAHA XV1600 Road Star (1999–2003)
• HiCOSUNG MOTO GV650, SE (2009)
• YAMAHA FZS1000 FZ1 (2001–2005)
• YAMAHA XV1700P Road Star Warrior (2002–2009)
• YAMAHA Roadliner, Stratoliner (2006–2009)
• YAMAHA XVS1100 V-Star (1999–2009)

WHY RIDERS CHOOSE THIS

Riders select the Motobatt MBT14B4 because its sealed AGM architecture removes scheduled maintenance while delivering instant, repeatable cranking power in any temperature. The QuadFlex terminal system simplifies installation by offering multiple secure connection points per post, which keeps voltage stable even when routed through tight frame rails or aftermarket gear. Reinforced internal plates and a vibration-resistant case absorb road shock and minimize internal degradation over time. Designed specifically for late-model cruisers and sport-touring platforms, this battery drops straight into stock brackets and restores full electrical distribution without custom fabrication.