# YTX9-BS motorcycle batteries

> YTX9-BS motorcycle battery and equivalents: 5 AGM and gel models from Varta, Exide, Fulbat and Motobatt, 8 to 9 Ah, up to 135 A. Compare and buy online.

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## Description

YTX9-BS batteries and their equivalents from Varta, Exide, Fulbat and Motobatt. Compare size and CCA and order online.

## YTX9-BS and its equivalents

YTX9-BS is one of the most common standard codes for motorcycle batteries. Different manufacturers produce batteries to this reference under their own names, so the same code may appear as ETX9-BS, FTX9-BS or MTX9. Here are 5 equivalents, all 12 V:
- **Varta YTX9-BS:** 8 Ah, 135 A.
- **Exide ETX9-BS:** 8 Ah, 120 A.
- **Fulbat FTX9-BS** and **FTX9-BS GEL:** 8.4 Ah, 135 A.
- **Motobatt MTX9:** 9 Ah, 125 A.

Three use AGM technology and two use gel. Although they share the code, capacity and cranking current vary slightly between brands, and so can the exact dimensions and terminal hardware. Compare the measurements and polarity of your current battery with the product page before choosing.
Browse the brand ranges in [Varta motorcycle batteries](https://bateriasonline.es/en/varta-motorcycle-batteries) and [Exide motorcycle batteries](https://bateriasonline.es/en/exide-motorcycle-batteries), the smaller [YTX7A-BS batteries](https://bateriasonline.es/en/ytx7a-bs-motorcycle-battery) or all [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries).

## Frequently asked questions

### Can I fit a battery with more CCA than my YTX9-BS?

Yes. Higher cranking current is not a problem if the size and polarity are the same.

### Does a YTX9-BS come filled with acid?

The BS suffix denotes a battery supplied with a separate acid pack; check each product page for how it is supplied.

## Choose by brand

The same yTX9-BS motorcycle batteries, filtered by manufacturer. Each brand has its own page with all its references and a buying guide.
- [Fulbat motorcycle batteries](https://bateriasonline.es/en/fulbat-motorcycle-batteries) (2)
- [Exide motorcycle batteries](https://bateriasonline.es/en/exide-motorcycle-batteries) (1)
- [Varta motorcycle batteries](https://bateriasonline.es/en/varta-motorcycle-batteries) (1)
- [Motobatt batteries](https://bateriasonline.es/en/motobatt-batteries) (1)

## Products in this category

| Product | Brand | Price |
|---|---|---|
| [Exide ETX9-BS · Motorcycle battery 12V 8Ah 120A](https://bateriasonline.es/en/exide-etx9-bs) | Exide | 22,74 € |
| [Fulbat FTX9-BS GEL · Motorcycle battery 12V 8.4Ah 135A](https://bateriasonline.es/en/fulbat-ftx9-bs-gel) | Fulbat | 55,83 € |
| [Varta YTX9-BS · Motorcycle battery 12V 8Ah 135A](https://bateriasonline.es/en/varta-ytx9-bs-508012014) | Varta | 29,40 € |

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*bateriasonline.es — Batteries and accessories · 2026-11-11*