Product Description
Yuasa YT9B-BS AGM Motorcycle Battery
The Yuasa YT9B-BS is a 12V AGM powersport battery built for dependable starts in popular Yamaha motorcycle, ATV, and scooter applications. This Group 9B battery delivers strong cranking performance with rugged, vibration-resistant construction, plus the absorbed glass mat (AGM) design eliminates maintenance once properly filled and charged. Trusted Yuasa battery quality ensures reliable performance, ride after ride.
YT9B-BS Features:
- Bottle-Supplied Activation – Ships with acid pack for proper fill, delivering peak performance after setup
- Sealed AGM Construction – Maintenance-free design for dependable cranking power and reduced corrosion
- Exact-Fit Group 9B Case – Narrow profile fits OEM trays that specify YT9B-BS
- Low Self-Discharge – Holds a charge longer between rides than flooded batteries
- Powersport Terminals – Top and front connection options ensure easy installation
- Left-Positive Polarity – Always verify your current terminal locations
Note: NOT compatible with 9-BS batteries. This 9B-BS is narrower in depth than a standard 9-BS battery.
Why Choose the YT9B-BS?
Genuine Yuasa battery quality that uses absorbed glass mat separators to immobilize electrolyte for excellent vibration resistance. After proper acid fill and charge, the sealed design becomes virtually maintenance-free while delivering consistent cranking amps for everyday riding. Its compact 9B footprint makes it a smart upgrade for many Yamaha YZF-R6 sport bikes, Raptor 700 ATVs, and Majesty 400 scooters, as well as other platforms that specify YT9B-BS. Riders seeking an AGM motorcycle or ATV battery will appreciate its reliable starts, stable voltage, and long service life.
YT9B-BS Cross Reference:
Replacement for Group 9B-BS batteries: 9B-BS, CT9B-4, CT9B-BS, CYLA9B4XTA, CYT9B-BS, GT9B-4, MBT9B4, PT9B-4, PT9B-BS, ST9B-4, UT9B-4, UT9B-BS, VT9B-4, XTA9B-BS, YT9B-4, YT9B-BS, YT9BBSFP.
Important: Always confirm your battery's dimensions, terminal configuration, and specifications before purchase to ensure proper fit.
| Voltage | 12V |
| Group Size | 9B |
| Type | AGM |
| Cold Cranking Amps | 115 |
| Capacity | 8 Ah (10hr) |
| Factory Activated | No |
| Polarity | + Left / - Right |
| Length | 5.91" |
| Width | 2.75" |
| Height | 4.13" |
| Weight | 8.7 lbs |
| Warranty | 1 Year |
Extend the Life of Your Battery
Keeping your battery charged between uses with a quality maintainer is essential for maximizing its lifespan. Save 10% on a NOCO Genius 1 Charger and Maintainer when bundled with battery using the option above.
