Motobatt Battery MB5U Sealed Factory‑Activated Replaces: 12N5‑3B, YB5L‑B

OVERVIEW

The Motobatt MB5U delivers reliable starting power and stable voltage output as a direct replacement for OEM cross-references 12N5-3B and YB5L-B. Built on Absorbent Glass Mat (AGM) chemistry, this sealed motorcycle battery eliminates fluid maintenance while ensuring consistent ignition performance. Its factory-activated design provides immediate cranking capability for vintage two-wheelers and modern dual-sport platforms.

ENGINEERING & PERFORMANCE

Advanced AGM electrochemistry stabilizes voltage under load and recovers quickly from deep discharge events, ensuring rapid engine turnover across varying temperatures. The reinforced casing and internal plate assembly absorb road shock and vibration, maintaining steady electrical distribution during off-pavement use or highway touring. Engineered as a completely maintenance-free unit, it installs directly into existing compartments without requiring acid checks, fluid top-offs, or specialized break-in procedures.

KEY FEATURES

• Advanced AGM (Absorbent Glass Mat) chemistry with factory-sealed, ready-to-install design
• Quadflex terminal architecture featuring four distinct connection points for versatile cable routing
• High cranking output for reliable ignition across cold starts and varying temperature conditions
• Extended cycle life engineered to withstand repeated deep discharge events
• Completely maintenance-free construction that eliminates electrolyte monitoring and fluid refills
• Reinforced internal build and rugged casing optimized for maximum vibration and impact resistance
• Direct replacement for OEM specifications 12N5-3B and YB5L-B
• Optimized chemical stability for clean power delivery

TECHNICAL SPECIFICATIONS

• Brand: Motobatt
• Part Name: MB5U
• Component Type: Motorcycle Battery
• Material: AGM (Absorbent Glass Mat)
• Supported Years: 1969–2003
• Compatible Trims: Vintage and modern two‑wheelers, dirt bikes, and dual‑sport platforms compatible with 12V AGM replacements

FITMENT

• Honda C70 Passport (1982–1983)
• Honda NH125 Aero (1984)
• Honda NH80MD Aero (1983–1984)
• Royal Enfield All Kick Start Models (2000–2003)
• Suzuki Model T20 (1969)
• Suzuki DR650S (1990–1991)
• Suzuki GT250 Hustler (1973–1977)
• Suzuki SP600 (1985)
• Suzuki Scramble TC305 (1969)
• Suzuki Scrambler TC250 (1969)
• Suzuki T200 & TC200 (All Years)
• Suzuki T250, T250-II, T250J, T250R (1972)
• Suzuki T305 (1969)
• Suzuki T350 Series (1979)
• Suzuki TS400 Apache (1972–1975)
• Yamaha DS6B & DS6C (1969–1970)
• Yamaha R3 (1969)
• Yamaha SRX600 (1986)
• Yamaha XT550 (1982–1983)
• Yamaha XT600 (1984–1989)

WHY RIDERS CHOOSE THIS

Riders install the Motobatt MB5U because its proprietary Quadflex terminal layout resolves complex wiring alignments found in vintage frames and restricted engine compartments. The sealed AGM cell chemistry maintains consistent spark delivery and rapid engine turnover even as older electrical systems degrade over time. By removing daily fluid maintenance and adding rugged vibration damping, this battery extends service intervals while protecting sensitive ignition circuits from shock damage. It pairs directly with OEM mounting dimensions to deliver dependable cold-start performance and cleaner power distribution without compromising the original machine’s electrical architecture.