Yuasa YB9-B 12V 9Ah Conventional Lead-Acid Battery for Motorcycles, Scooters, ATVs, Snowmobiles, Jet Skis, Ride-on Mowers (YB9BDC)

Riders and equipment owners who demand dependable starting power turn to the Yuasa YB9-B 12V 9Ah battery. This conventional flooded lead-acid unit is built for motorcycles, scooters, ATVs, snowmobiles, jet skis, and ride-on mowers, delivering the cranking amps needed in varied conditions. With a right-positive terminal layout and nut-and-bolt connections, installation is straightforward for most applications.

Key specifications

• Voltage: 12 V
• Capacity (10 HR): 9 Ah
• Cold Cranking Amps (CCA): 90 A
• Battery type: Conventional flooded lead-acid
• Terminal type: B (nut & bolt)
• Polarity: Right positive
• Electrolyte included: No (requires separate acid pack)
• Maintenance: Yes (periodic water top-up)
• Standard charging current: 0.9 A
• Max charging current: 4.5 A
• Venting: External vent tube
• Container material: Polypropylene
• Mounting position: Upright only

Why choose it

Yuasa is a trusted name in powersport batteries, and the YB9-B delivers consistent performance and a long service life when properly maintained. Its robust construction and reliable CCA rating make it a solid choice for seasonal vehicles that sit idle, as long as you keep the electrolyte topped up and use a suitable charger.

Ideal use cases

• Motorcycles and scooters requiring a 12V 9Ah battery
• ATVs and snowmobiles used in cold weather
• Jet skis and personal watercraft
• Ride-on mowers and other small engine equipment

Good to know

This battery is shipped dry, so you will need to purchase and fill it with the correct acid pack before first use. After filling, an initial charge is recommended. Always install upright and connect the vent tube to prevent acid fumes from accumulating. Periodic checks of the electrolyte level will extend battery life.