# Exide AGM12-9 12N9-4B-1 · Motorcycle battery 12V 9Ah 120A

![Exide AGM12-9 12N9-4B-1 · Motorcycle battery 12V 9Ah 120A](https://bateriasonline.es/57-home_default/exide-agm12-9.jpg)

> Exide AGM12-9 (JIS 12N9-4B-1): 9 Ah motorcycle battery, 120 A (EN), 135×75×140 mm, positive terminal on the left, AGM. Equivalent to Exide ETX9C-BS.

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

- **Canonical URL**: https://bateriasonline.es/en/exide-agm12-9
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-AGM12-9
- **EAN**: 3661024033978
- **MPN**: AGM12-9
- **Price**: 49,79 € (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 | 9 Ah |
| Cold cranking amps (EN) | 120 A |
| Length | 135 mm |
| Width | 75 mm |
| Height | 140 mm |
| Weight | 3.2 kg |
| Polarity | Positive terminal on the left |
| Terminal type | M04 |
| JIS code | 12N9-4 B-1 12N9-4 B YB9-B YTX9 C-BS |

## Quick description

Exide AGM12-9 (JIS 12N9-4B-1): motorcycle battery (AGM) with 12 V, 9 Ah and 120 A cold cranking current, measuring 135 × 75 × 140 mm, with the positive terminal on the left.

## Description

## Who the Exide AGM12-9 is for

The Exide AGM12-9 is made for motorcycles, scooters and quads. With 9 Ah, the AGM12-9 suits motorcycles and scooters that had a battery of that capacity.
At 9 Ah it covers mid-capacity motorcycles, large scooters and light quads. The AGM12-9 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 AGM12-9

Shops, garages and catalogues identify the AGM12-9 with these codes:

| Commercial reference | AGM12-9 |
|---|---|
| JIS code | 12N9-4B-1, 12N9-4B, YB9-B, YTX9C-BS |
| EAN | 3661024033978 |
| Terminal type | M04 |
| Not to be confused with | Exide AGM12-4 (3 Ah, 50 A, positive terminal on the right), Exide AGM12-5 (4 Ah, 70 A, positive terminal on the right), Exide AGM12-8 (8.6 Ah, 145 A) |

## Equivalents and alternatives to the Exide AGM12-9

Other AGM batteries that fit the AGM12-9's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Fulbat FT9A-BS | AGM | 9.5 Ah | 115 A | 135 × 75 × 139 |
| Exide ETX9C-BS | AGM | 9 Ah | 120 A | 135 × 75 × 140 |

## Exide AGM12-9 vs AGM12-10.5 and ET12B-BS

The real differences between the AGM12-9 and the closest Exide models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide AGM12-9 (this one) | 9 Ah | 120 A | 135 × 75 × 140 | left | 3.2 kg |
| Exide AGM12-10.5 | 10 Ah | 160 A | 150 × 70 × 130 | left | 3.6 kg |
| Exide ET12B-BS | 10 Ah | 160 A | 150 × 70 × 130 | left | 3.7 kg |

- Exide AGM12-10.5: 1 Ah more, 40 A more cranking power, a different case (150 × 70 × 130 mm).
- Exide ET12B-BS: 1 Ah more, 40 A more cranking power, a different case (150 × 70 × 130 mm).

## Before ordering the AGM12-9, check this

- The AGM12-9 needs 135 × 75 × 140 mm of space: measure it with the hold-down clamp in place.
- Polarity of the AGM12-9: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- Your current battery should say about 9 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 120 A or less, the AGM12-9 covers your engine.

## Frequently asked questions about the Exide AGM12-9

### AGM12-9 or AGM12-10.5: which one suits me?

Compared with the AGM12-9, the Exide AGM12-10.5 has 1 Ah more and 40 A more cranking power. If your current battery says 160 A or more, choose the AGM12-10.5; if it says 120 A or less, the AGM12-9 is enough. Mind the space: the AGM12-10.5 measures 150 × 70 × 130 mm.

### How much does the Exide AGM12-9 weigh?

3.2 kg, with 9 Ah of capacity. For reference, the Exide AGM12-10.5 (10 Ah) weighs 3.6 kg.

### Which battery is equivalent to the Exide AGM12-9?

Only other AGM batteries with its dimensions and polarity: Fulbat FT9A-BS and Exide ETX9C-BS. Neither an EFB nor a conventional battery replaces the AGM12-9.

### Which side is the positive terminal on the Exide AGM12-9?

On the AGM12-9, 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.

## What it means that the AGM12-9 is AGM

Inside, the AGM12-9 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Keep comparing: alternatives to the AGM12-9

- [Other motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)
- [Fulbat FT9A-BS](https://bateriasonline.es/en/fulbat-ft9a-bs) · 9.5 Ah, 115 A, 135×75×139 mm
- [Exide ETX9C-BS](https://bateriasonline.es/en/exide-etx9c-bs) · 9 Ah, 120 A, 135×75×140 mm

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