Yuasa 12N7-3B Conventional 12 Volt Battery - YUAM2273B

The Yuasa 12N7-3B Conventional 12 Volt Battery (YUAM2273B) is a trusted powersport battery engineered to deliver reliable cranking power for motorcycles, ATVs, scooters, and other powersport applications. Yuasa conventional batteries are widely regarded as an industry standard in the powersport segment, built to protect against corrosion and withstand the vibration that comes with off-road and street riding. If you're replacing a worn-out battery on a Yamaha DT125, YFM80 Badger, Kawasaki W1, W1SS, or a comparable machine, this is the direct-fit Yuasa solution.

Key Features & Benefits

• Industry-Standard Conventional Design: Yuasa conventional batteries set the benchmark for powersport reliability, offering a familiar wet-cell format that's compatible with a wide range of classic and modern powersport vehicles.
• Enhanced Cranking Performance: Special thin separators allow two extra plates per cell to be installed, delivering a 30% improvement in cranking performance compared to standard designs — so your engine starts confidently even in cold or demanding conditions.
• Corrosion Resistance: Engineered to protect against corrosion, helping extend service life and reduce maintenance headaches over the battery's working life.
• Vibration Resistance: Built to withstand the vibration inherent to motorcycles, ATVs, and off-road machines, reducing the risk of internal damage from rough terrain or daily riding.
• High Cranking Power: Designed to deliver the high cranking amperage powersport engines demand, providing dependable starts across a range of riding conditions.
• 12-Volt Platform: The standard 12V architecture ensures compatibility with the electrical systems found on the vast majority of modern and vintage powersport vehicles in this size class.

Specifications

• Battery Type: 12N7-3B
• Battery Family: Conventional
• Voltage: 12V
• Capacity (10-HR): 7 Ah
• Manufacturer Part Number (MPN): YUAM2273B
• SKU: YSAYUAM2273B
• UPC: 048493227320
• Electrolyte: Sold separately (dry-charged battery; requires activation before use)

Fitment

The Yuasa 12N7-3B is a conventional powersport battery sized and rated for a variety of motorcycles and ATVs. Based on available sourced fitment data, confirmed applications include:

• Yamaha DT125
• Yamaha YFM80 Badger
• Kawasaki W1 (1968–1970)
• Kawasaki W1SS (1968–1970)

This battery is categorized in the Motorcycle & Scooter powersport segment and is also referenced for use in compatible ATV/UTV and PWC applications that call for the 12N7-3B battery designation. Always cross-reference your owner's manual or OEM battery label with the 12N7-3B battery type before ordering to confirm compatibility. If you're unsure whether this battery fits your specific machine, contact the ThreePiece.us fitment team before purchasing.

What's in the Box

• 1x Yuasa 12N7-3B Conventional 12 Volt Battery (dry-charged, unfilled)
• Hardware included (per manufacturer listing)

Note: Electrolyte (battery acid) is sold separately and must be added prior to initial use. Follow Yuasa's activation instructions carefully before installing this battery in your vehicle.

Why Buy from ThreePiece.us

ThreePiece.us has been serving powersport and automotive enthusiasts since 2014, with over 10,000 customers trusting our team for fitment guidance and parts sourcing. When you order the Yuasa YUAM2273B battery here, you get:

• Free Shipping: Every order ships free — no minimum required.
• Affirm Financing: Split your purchase into manageable payments with Affirm financing available at checkout, including 0% APR options.
• Expert Fitment Support: Not sure if this battery fits your bike or ATV? Call our team at 813-535-5801 or use the fitment checker on the product page. We'll help you verify the right part before you buy.
• In-Stock Availability: This battery is regularly stocked, so you're not waiting weeks for a special order.
• Trusted Seller: Over a decade of experience and thousands of satisfied customers back every transaction.

Frequently Asked Questions

Q: Does this battery come filled with electrolyte, or do I need to add acid separately?
A: The Yuasa 12N7-3B is a dry-charged conventional battery, meaning it ships without electrolyte. Battery acid/electrolyte is sold separately and must be added and the battery properly charged before installation. Follow Yuasa's included activation instructions.

Q: What vehicles does the 12N7-3B fit?
A: Sourced fitment data confirms this battery fits the Yamaha DT125, Yamaha YFM80 Badger, and Kawasaki W1/W1SS (1968–1970), among other powersport applications that specify the 12N7-3B battery type. Always verify against your owner's manual or the OEM battery label on your machine.

Q: What makes Yuasa conventional batteries better than generic alternatives?
A: Yuasa conventional batteries feature special thin separators that allow two extra plates per cell, resulting in a 30% improvement in cranking performance versus standard designs. They're also engineered specifically to resist corrosion and withstand vibration — two of the most common causes of premature battery failure in powersport applications.

Q: How do I confirm this is the right battery before I order?
A: Check your owner's manual or the label on your current battery for the battery type designation — if it says 12N7-3B, this Yuasa unit is the direct replacement. You can also use the fitment verification tool on this page or reach out to the ThreePiece.us team at 813-535-5801 for a quick confirmation before placing your order.