# Exide ETX9-BS · Motorcycle battery 12V 8Ah 120A

![Exide ETX9-BS · Motorcycle battery 12V 8Ah 120A](https://bateriasonline.es/257-home_default/exide-etx9-bs.jpg)

> Exide ETX9-BS: 8 Ah motorcycle battery, 120 A (EN), 150×90×105 mm, positive terminal on the left, AGM. Equivalent to Exide AGM12-7.5.

**Category:** [Motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) → [Exide](https://bateriasonline.es/en/exide-batteries)

- **Canonical URL**: https://bateriasonline.es/en/exide-etx9-bs
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-ETX9-BS
- **EAN**: 3661024033831
- **MPN**: ETX9-BS
- **Price**: 22,74 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE MOTORCYCLE AGM 12 V |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 8 Ah |
| Cold cranking amps (EN) | 120 A |
| Length | 150 mm |
| Width | 90 mm |
| Height | 105 mm |
| Weight | 3.1 kg |
| Polarity | Positive terminal on the left |
| Terminal type | M12 |
| JIS code | YTX9-BS |

## Quick description

Exide ETX9-BS: motorcycle battery (AGM) with 12 V, 8 Ah and 120 A cold cranking current, measuring 150 × 90 × 105 mm, with the positive terminal on the left.

## Description

## The Exide ETX9-BS at a glance

The Exide ETX9-BS is made for motorcycles, scooters and quads. With 8 Ah, the ETX9-BS suits motorcycles and scooters that had a battery of that capacity.
At 8 Ah it covers mid-capacity motorcycles, large scooters and light quads. The ETX9-BS belongs to the Exide EXIDE MOTORCYCLE AGM 12V range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Part numbers and codes for the Exide ETX9-BS

This is how the Exide ETX9-BS appears on the label and in parts catalogues:

| Commercial reference | ETX9-BS |
|---|---|
| JIS code | YTX9-BS |
| EAN | 3661024033831 |
| Terminal type | M12 |
| Not to be confused with | Exide ETX9C-BS (9 Ah, 120 A) |

## Equivalents and alternatives to the Exide ETX9-BS

Other AGM batteries that fit the ETX9-BS's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Fulbat FTX9-BS | AGM | 8.4 Ah | 135 A | 150 × 87 × 105 |
| Varta YTX9-BS | AGM | 8 Ah | 135 A | 152 × 88 × 106 |
| Varta YTX9 (FA) | AGM | 8 Ah | 135 A | 151 × 87 × 106 |
| Exide AGM12-7.5 | AGM | 8 Ah | 120 A | 150 × 90 × 105 |
| Exide ET12A-BS | AGM | 10 Ah | 130 A | 150 × 90 × 105 |

## Exide ETX9-BS vs ET12A-BS and AGM12-8: which one to choose?

The real differences between the ETX9-BS and the closest Exide models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide ETX9-BS (this one) | 8 Ah | 120 A | 150 × 90 × 105 | left | 3.1 kg |
| Exide ET12A-BS | 10 Ah | 130 A | 150 × 90 × 105 | left | 3.4 kg |
| Exide AGM12-8 | 8.6 Ah | 145 A | 150 × 90 × 95 | left | 3.4 kg |

- Exide ET12A-BS: 2 Ah more, 10 A more cranking power, the same dimensions.
- Exide AGM12-8: 0.60 Ah more, 25 A more cranking power, a different case (150 × 90 × 95 mm).

## Before ordering the ETX9-BS, check this

- Cold cranking: 120 A (EN), equal to or higher than the original.
- Your current battery should say about 8 Ah; a little more is also fine.
- The ETX9-BS has the positive terminal on the left: compare it with your current battery.
- The ETX9-BS needs 150 × 90 × 105 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Exide ETX9-BS

### ETX9-BS or ET12A-BS: which one suits me?

Compared with the ETX9-BS, the Exide ET12A-BS has 2 Ah more and 10 A more cranking power. If your current battery says 130 A or more, choose the ET12A-BS; if it says 120 A or less, the ETX9-BS is enough. Both measure 150 × 90 × 105 mm, so they fit the same tray.

### How much does the Exide ETX9-BS weigh?

3.1 kg, with 8 Ah of capacity. For reference, the Exide ET12A-BS (10 Ah) weighs 3.4 kg.

### Which battery is equivalent to the Exide ETX9-BS?

Only other AGM batteries with its dimensions and polarity: Fulbat FTX9-BS, Varta YTX9-BS and Varta YTX9 (FA). Neither an EFB nor a conventional battery replaces the ETX9-BS.

### Which side is the positive terminal on the Exide ETX9-BS?

On the ETX9-BS, the positive terminal is on the left with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

### How do I stop the motorcycle battery going flat in winter?

Connect it to a maintenance charger or disconnect it if the bike will sit for more than a month. A flat motorcycle battery sulphates in a few weeks.

## AGM technology in the ETX9-BS

Inside, the ETX9-BS has glass fibre separators (AGM) that hold the electrolyte. The ETX9-BS needs a charger with an AGM mode that does not exceed 14.7 V.

## Other options if you are unsure about the ETX9-BS

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Full Exide catalogue](https://bateriasonline.es/en/exide-batteries)
- [Fulbat FTX9-BS](https://bateriasonline.es/en/fulbat-ftx9-bs) · 8.4 Ah, 135 A, 150×87×105 mm
- [Varta YTX9-BS](https://bateriasonline.es/en/varta-ytx9-bs-508012014) · 8 Ah, 135 A, 152×88×106 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*