YTX9-BS Advance Auto Battery: Top Picks, Deals & Fitment Guide

Isabella Sep 08, 2026

If you’ve been searching for “YTX9-BS Advance Auto,” you’re probably trying to replace a dead or weak battery in a motorcycle, scooter, ATV, or another powersport vehicle. The YTX9-BS is a popular sealed AGM battery size, and Advance Auto Parts is one of the retail chains that can help you find a compatible replacement. Before you buy, it helps to understand what this battery does, how to confirm fitment, and what to expect from the buying and installation process.

2019 Yamaha Grizzly 700 EPS
2019 Yamaha Grizzly 700 EPS

This guide breaks down the YTX9-BS in practical terms, including its specifications, common applications, and how Advance Auto fits into the equation. You’ll also find tips for installation, charging, storage, and long-term maintenance so your new battery lasts beyond the first ride.

A ride like this doesn’t ask for attention. It earns it.
A ride like this doesn’t ask for attention. It earns it.

Understanding the YTX9-BS Battery and Advance Auto Availability

The YTX9-BS is a 12-volt, 8Ah absorbed glass mat battery that is commonly used in powersports vehicles. It typically delivers around 120 cold cranking amps and measures roughly 5.91 x 3.43 x 4.13 inches, or about 150 x 87 x 105 millimeters. The “BS” designation is part of a standardized battery code, not a brand name, so you may see it sold under names like DieHard, Yuasa, MotoBatt, or other aftermarket labels.

a red and black four wheeler parked in front of a brick wall
a red and black four wheeler parked in front of a brick wall

Advance Auto Parts carries a wide range of automotive and powersports batteries through its stores and website. Availability of a specific YTX9-BS battery can vary by location, but the retailer often provides online fitment tools, ship-to-home options, and in-store pickup. If you search “YTX9-BS Advance Auto,” you’re likely looking for a replacement that matches your original battery’s physical size and electrical output.

YTX9-BS Specifications and Common Applications

an off - road vehicle is parked next to a gas pump
an off - road vehicle is parked next to a gas pump

Key YTX9-BS specs include 12 volts, 8 amp-hours, and about 120 cold cranking amps. Because it is an AGM battery, it is sealed and maintenance-free, meaning you generally do not need to add water. AGM construction also helps resist vibration, which is important for motorcycles, scooters, ATVs, and personal watercraft that experience rough conditions.

This battery size is often used in smaller-displacement motorcycles, scooters, utility ATVs, and some UTVs or jet skis. Popular applications can include certain Honda, Yamaha, Kawasaki, and Suzuki models, though exact fitment depends on the year, model, and engine. Always verify compatibility using your vehicle’s specific fitment guide rather than relying only on the YTX9-BS code.

How to Confirm Advance Auto Has the Right YTX9-BS

an atv is parked in the grass
an atv is parked in the grass

Start by entering your vehicle’s year, make, model, and engine size into the Advance Auto Parts website or app. The fitment tool should narrow down the correct battery group and may show a YTX9-BS equivalent. Compare the dimensions, terminal position, cold cranking amps, and amp-hour rating against your old battery or owner’s manual.

If the exact YTX9-BS is not in stock, Advance Auto may offer a compatible battery with the same or better specifications. Confirm that it is AGM, matches the terminal layout, and fits your battery box without forcing it. Call the local store if you are unsure, and ask about core charges, warranty terms, and whether they can order the battery for pickup or delivery.

Buying, Installing, and Maintaining a YTX9-BS from Advance Auto

a black four - wheeler is parked in the parking lot
a black four - wheeler is parked in the parking lot

Once you have confirmed the right battery, buying from Advance Auto can be convenient because you can check inventory before leaving home. Prices and promotions can vary, so compare the online price with the in-store price and look for coupons or bundle deals. Some locations may also offer battery testing or installation for automotive batteries, but powersports installation policies can differ, so call ahead if you need help.

A new YTX9-BS battery should be treated as a long-term investment, not just a quick fix. Read the warranty and return policy, keep your receipt, and ask whether the battery requires an initial charge before installation. Proper handling from the start can prevent premature failure and ensure your charging system works with the new battery instead of against it.

a red and black atv parked in a garage next to some shelves with boxes on it
a red and black atv parked in a garage next to some shelves with boxes on it
a red four - wheeler parked in front of a building
a red four - wheeler parked in front of a building
two pictures of the same red truck in a showroom with other vehicles on display
two pictures of the same red truck in a showroom with other vehicles on display
a white and red four wheeler parked in a parking lot
a white and red four wheeler parked in a parking lot
a white and red four wheeled vehicle parked on the side of the road next to a curb
a white and red four wheeled vehicle parked on the side of the road next to a curb
a red four wheeler parked in the grass
a red four wheeler parked in the grass
an atv is parked on the side of the road in front of a truck with large tires
an atv is parked on the side of the road in front of a truck with large tires
a red four wheeler parked in front of a house
a red four wheeler parked in front of a house
two cars parked next to each other in a parking lot with one car on the ground
two cars parked next to each other in a parking lot with one car on the ground

Step-by-Step Installation Tips for Your Powersports Vehicle

Before you begin, put on safety glasses and gloves, turn off the ignition, and remove the key. Disconnect the negative battery cable first, then the positive cable, and remove any hold-down bracket or strap. Note how the old battery sits, take a photo if needed, and clean the battery tray and terminals before installing the new YTX9-BS.

Place the new battery in the same orientation, reconnect the positive cable first, then the negative cable, and tighten the terminal bolts snugly without overtightening. Apply a thin layer of dielectric grease to help prevent corrosion, then test the voltage and start the vehicle. If the battery struggles, check the charging system, because a weak stator or regulator can drain even a brand-new battery.

Charging, Storage, and Extending Battery Life

Use a smart charger designed for 12-volt AGM batteries, preferably with a 1- to 2-amp charging rate and an automatic float mode. Avoid high-amperage car chargers that can overheat a small powersports battery. If the battery reads below 12.4 volts before installation, charge it fully according to the manufacturer’s instructions before putting it into service.

For storage, keep the battery in a cool, dry place and use a maintainer if the vehicle sits for weeks or months. Frequent short trips may not fully recharge the battery, so a maintainer can help extend its life. With proper care, a quality YTX9-BS battery can last several seasons, but heat, vibration, and a faulty charging system can shorten that lifespan.

Replacing a YTX9-BS battery does not have to be a guessing game. With the right specs, a quick fitment check, and a little care during installation and storage, you can get back on the road or trail with confidence. If you’re near an Advance Auto Parts store, check inventory online, confirm the battery matches your vehicle’s requirements, and consider picking up a battery maintainer at the same time. A few minutes of preparation now can save you from a no-start situation later.