YTX9-BS Battery Cross Reference Chart

YTX9-BS is a very popular Powersports battery, commonly used in ATVs, motorcycles, scooters, snowmobiles, power generators, and other similar applications as a starting battery for smaller internal combustion engines.

YTX-BS is a sealed battery (BS - Battery Sealed), although there are wet/flooded lead-acid batteries made in this size as well.

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 YTX9-BS Features and Specifications

YTX9-BS battery default physical dimensions are 5.875 x 3.4375 x 4.125 inches (150 x 87 x 105 mm) - that means that any 'standard' YTX9-BS battery should fit into the battery compartment of this size. Terminal orientation is: positive terminal is on the left, negative terminal is on the right side of the battery.

YTX9-BS battery is manufactured by most battery brands, which often have their 'own' label, for example CTX9-BS, BTX9-BS, ETX-9, PTX9-BS, STX9-BS, XCA120R9, MBTX9U, etc.

On average, YTX9-BS battery features 8 Ah 10h capacity and 120-180 Cold Cranking Amps (CCA) value.

As a sealed lead-acid battery, YTX9-BS battery comes as either Absorbent Glass Mat (AGM) or Gel-cell battery - these are low maintenance batteries, designed to be vibration resistant and mechanically relatively strong in order to withstand the use as the Powersports batteries.

Lithium YTX9-BS batteries are much lighter batteries that also cost much more. Also, if the lithium battery is not designed as 'drop-in replacement' for YTX9-BS lead-acid batteries, don't use it in the vehicles with alternators designed for charging lead-acid batteries - in such conditions lithium-ion batteries may easily overheat, catch fire and even explode.

Unless you are a pro driver, go for a good and reliable AGM/Gel-cell battery from a reputable brand.

chrome pro ytx9 bs igel w300

The following cross reference chart lists some of the most popular YTX9-BS battery models on the market.

Brand 10h Capacity (Ah) CCA (Amps) Amazon Link
Chrome 6 180 Chrome YTX9-BS iGel Battery
Deka 8 120 Deka Sports Power ETX-9
EverLast 8 135 EverLast CTX9-BS Battery
ExpertPower 9 180 ExpertPower ETX9-BS Battery
Mighty Max 8 135 Mighty Max YTX9-BS Battery
MotoBatt 10.5 - MotoBatt MBTX9U Battery
PowerStar 8 - PowerStar YTX9-BS Battery
Power-Sonic 8 120 Power-Sonic PTX9-BS Battery
SigmasTek 8 120 SigmasTek STX9-BS Battery
VMAX TANKS 9 120 VMAX TANKS XCA20R9 Battery
Weize 8 135 Weize YTX9-BS Battery
Yuasa 8 135 Yuasa YUAM329BS YTX9-BS Battery

Note: Amazon links open in the new windows, feel free to check them for the most up-to-date offers and prices.

Capacity for motorcycle starting batteries is typically given for a 10h period since these are starting/cranking batteries, optimized for short but strong bursts of energy.

The price of YTX9-BS batteries vary depending on the brand, capacity, type, warranty terms, and similar. The following chart lists the prices of some of the most popular YTX9-BS brands:

How to Maintain YTX9-BS Battery?

AGM and Gel-Cell batteries are low maintenance batteries - there is no need (or option) to add distilled water during the operating life of the battery.

The most important maintenance tasks include keeping the connections corrosion-free (which is now much easier since there is no electrolyte spills) and keeping the batteries charged while the vehicle is not in use.

expertpower ytx9 bs w300

Modern AGM and Gel-cell batteries feature relatively low self-discharge rate, typically in the 3-8% per month range (at 77°F/25°C) and if the vehicle is stored for longer than 2-3 months, it is good practice to disconnect the battery from the electric system in order to prevent parasite loads from discharging the battery.

Also, from time to time, it is good practice to recharge the battery with smart AGM/Gel-cell battery chargers - these chargers analyze the battery before charging and adapt the charging process according to the battery condition. Also, they can even equalize the cells and after the charging process is done, they automatically switch to maintenance mode, keeping the batteries charged over a longer period of time.


Long Story Short: If you are looking for a new YTX9-BS battery, go for the battery of one of the more popular brands.

Their batteries have been tested by countless users in many real-life situations and have stood the test of time.

And whatever you do, stay safe - YTX9-BS batteries are compact batteries, but nonetheless, they are able to provide strong bursts of energy.