# Exide ETX4L-BS · Motorcycle battery 12V 3Ah 50A

![Exide ETX4L-BS · Motorcycle battery 12V 3Ah 50A](https://bateriasonline.es/207-home_default/exide-etx4l-bs.jpg)

> Exide ETX4L-BS: 3 Ah motorcycle battery, 50 A (EN), 115×70×85 mm, positive terminal on the right, AGM. Equivalent to Exide AGM12-4.

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

- **Canonical URL**: https://bateriasonline.es/en/exide-etx4l-bs
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-ETX4L-BS
- **EAN**: 3661024033725
- **MPN**: ETX4L-BS
- **Price**: 11,76 € (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 | 3 Ah |
| Cold cranking amps (EN) | 50 A |
| Length | 115 mm |
| Width | 70 mm |
| Height | 85 mm |
| Weight | 1.5 kg |
| Polarity | Positive terminal on the right |
| Terminal type | M04 |
| JIS code | YTX4 L-BS |

## Quick description

The Exide ETX4L-BS is a motorcycle battery (AGM) with 12 V, 3 Ah and 50 A cold cranking current, measuring 115 × 70 × 85 mm, with the positive terminal on the right.

## Description

## Who the Exide ETX4L-BS is for

The Exide ETX4L-BS is made for motorcycles, scooters and quads. With 3 Ah, the ETX4L-BS suits motorcycles and scooters that had a battery of that capacity.
At 3 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The ETX4L-BS belongs to the Exide EXIDE MOTORCYCLE AGM 12V range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Exide ETX4L-BS codes and part numbers

This is how the Exide ETX4L-BS appears on the label and in parts catalogues:

| Commercial reference | ETX4L-BS |
|---|---|
| JIS code | YTX4L-BS |
| EAN | 3661024033725 |
| Terminal type | M04 |
| Not to be confused with | Exide ETX5L-BS (4 Ah, 70 A), Exide ETX7L-BS (6 Ah, 100 A), Exide ETX14L-BS (12 Ah, 200 A) |

## Equivalents and alternatives to the Exide ETX4L-BS

As the ETX4L-BS is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Varta YTX4L-4 (FA) | AGM | 3 Ah | 50 A | 113 × 70 × 87 |
| Exide AGM12-4 | AGM | 3 Ah | 50 A | 115 × 70 × 85 |
| Fulbat FTX4L-BS / FTZ5S-BS | AGM | 4.2 Ah | 50 A | 113 × 70 × 85 |

## Exide ETX4L-BS vs AGM12-5 and ETX5L-BS: differences

How the ETX4L-BS compares with Exide batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide ETX4L-BS (this one) | 3 Ah | 50 A | 115 × 70 × 85 | right | 1.5 kg |
| Exide AGM12-5 | 4 Ah | 70 A | 115 × 70 × 105 | right | 1.8 kg |
| Exide ETX5L-BS | 4 Ah | 70 A | 115 × 70 × 105 | right | 1.9 kg |

- Exide AGM12-5: 1 Ah more, 20 A more cranking power, a different case (115 × 70 × 105 mm).
- Exide ETX5L-BS: 1 Ah more, 20 A more cranking power, a different case (115 × 70 × 105 mm).

## What to look at before buying the ETX4L-BS

- Cold cranking: 50 A (EN), equal to or higher than the original.
- With 3 Ah, the ETX4L-BS replaces an original battery of that capacity or slightly less.
- The ETX4L-BS has the positive terminal on the right: compare it with your current battery.
- The ETX4L-BS needs 115 × 70 × 85 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Exide ETX4L-BS

### Exide ETX4L-BS or AGM12-5?

Compared with the ETX4L-BS, the Exide AGM12-5 has 1 Ah more and 20 A more cranking power. If your current battery says 70 A or more, choose the AGM12-5; if it says 50 A or less, the ETX4L-BS is enough. Mind the space: the AGM12-5 measures 115 × 70 × 105 mm.

### How much does the Exide ETX4L-BS weigh?

The ETX4L-BS weighs 1.5 kg. For reference, the Exide AGM12-5 (4 Ah) weighs 1.8 kg.

### Which battery is equivalent to the Exide ETX4L-BS?

Only other AGM batteries with its dimensions and polarity: Varta YTX4L-4 (FA), Exide AGM12-4 and Fulbat FTX4L-BS / FTZ5S-BS. Neither an EFB nor a conventional battery replaces the ETX4L-BS.

### Which side is the positive terminal on the Exide ETX4L-BS?

The ETX4L-BS has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

### Which charger does the Exide ETX4L-BS need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## What it means that the ETX4L-BS is AGM

Inside, the ETX4L-BS has glass fibre separators (AGM) that hold the electrolyte. The ETX4L-BS needs a charger with an AGM mode that does not exceed 14.7 V.

## More batteries to compare with the ETX4L-BS

- [Other motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)
- [Varta YTX4L-4 (FA)](https://bateriasonline.es/en/varta-ytx4l-4-fa-503909005) · 3 Ah, 50 A, 113×70×87 mm
- [Exide AGM12-4](https://bateriasonline.es/en/exide-agm12-4) · 3 Ah, 50 A, 115×70×85 mm

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