Battery Yuasa YTX20CH-BS AGM 18.9Ah

Battery Yuasa YTX20CH-BS AGM 12V 18.9Ah

The Yuasa YTX20CH-BS motorcycle starter battery uses AGM technology, with 12V, 18.9Ah and 270A starting current. It measures 150 × 87 × 161 mm (length × width × height). Check the price and availability of this reference and confirm the installation format before buying.

Technical specifications

18Ah C10 and 18.9Ah C20: the same Yuasa battery

Yuasa specifies 18Ah at C10 and 18.9Ah at C20 for the YTX20CH-BS. The difference comes from the discharge rate used to measure capacity, not from two different models. Always compare capacities measured at the same rate.

How do I check whether this battery fits my motorcycle?

Compare the installed battery reference or the vehicle manual. The battery compartment, fixing, positive terminal position and terminal type must accommodate this battery; cables must reach without strain. Two 12V batteries, or batteries with the same Ah rating, are not necessarily interchangeable.

Battery code with a hyphen, spaces or no separators

When searching for YTX20CH-BS, YTX20CH BS, YTX20CH, always compare the brand and the product specifications. Different ways of writing the code help identify a format, but do not guarantee identical performance between manufacturers.

Compare YTX20CH-BS and ETX20CH-BS

These references may appear when searching for a similar format, but their specifications are not identical. Check the available space, terminals, fixing and required performance. This table does not certify fitment to a particular vehicle.

Charging and maintaining an AGM motorcycle battery

Once correctly activated and sealed, an AGM battery does not need water topping up. This does not mean it can remain discharged: during long periods without use, check the charge and use a charger suited to AGM and the battery capacity. Do not open a battery that has already been sealed.

Links to help you choose and buy

• View all Yuasa batteries
• View motorcycle batteries
• Compare batteries in this capacity range
• Motorcycle chargers and maintainers

Questions before buying

Can I choose solely by the Ah rating?

No. Ah describes capacity; starting current in A is a different specification. Also check voltage, dimensions, connections and technology, and compare values measured under the same standard or discharge rate.

Will any motorcycle charger work?

No. It must support 12V AGM batteries of this capacity. Check the programme and charging current recommended by the battery and charger manufacturers.

What if I do not know which battery my motorcycle needs?

Check the vehicle manual or send us the make, model, engine size, year and current battery reference so we can help you check the specifications.

Warranty

6 months.