# Exide ET4B-BS · Motorcycle battery 12V 2Ah 35A

![Exide ET4B-BS · Motorcycle battery 12V 2Ah 35A](https://bateriasonline.es/202-home_default/exide-et4b-bs.jpg)

> Exide ET4B-BS: 2 Ah motorcycle battery, 35 A (EN), 115×40×85 mm, AGM. Equivalent to Fulbat FT4B-BS and Motobatt MBT4BB.

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

- **Canonical URL**: https://bateriasonline.es/en/exide-et4b-bs
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-ET4B-BS
- **EAN**: 3661024033701
- **MPN**: ET4B-BS
- **Price**: 16,66 € (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 | 2 Ah |
| Cold cranking amps (EN) | 35 A |
| Length | 115 mm |
| Width | 40 mm |
| Height | 85 mm |
| Weight | 0.9 kg |
| Terminal layout | 4 |
| Terminal type | M13 |
| JIS code | YT4 B-BS |

## Quick description

Exide ET4B-BS: motorcycle battery (AGM) with 12 V, 2 Ah and 35 A cold cranking current, measuring 115 × 40 × 85 mm.

## Description

## The Exide ET4B-BS at a glance

The Exide ET4B-BS is made for motorcycles, scooters and quads. It is worth keeping the ET4B-BS on a maintenance charger if the bike is laid up over winter.
At 2 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The ET4B-BS belongs to the Exide EXIDE MOTORCYCLE AGM 12V range. [The full range of Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Exide ET4B-BS codes and part numbers

Shops, garages and catalogues identify the ET4B-BS with these codes:

| Commercial reference | ET4B-BS |
|---|---|
| JIS code | YT4B-BS |
| EAN | 3661024033701 |
| Terminal type | M13 |
| Not to be confused with | Exide ET7B-BS (7 Ah, 85 A, positive terminal on the left), Exide ET9B-BS (8 Ah, 110 A, positive terminal on the left), Exide ET14B-BS (12 Ah, 190 A, positive terminal on the left) |

## Equivalents and alternatives to the Exide ET4B-BS

As the ET4B-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) |
|---|---|---|---|---|
| Fulbat FT4B-BS | AGM | 2.4 Ah | 40 A | 113 × 38 × 85 |
| Motobatt MBT4BB | AGM | 2.5 Ah | 40 A | 113 × 38 × 87 |

## Check this before ordering the Exide ET4B-BS

- Length, width and height of the ET4B-BS: 115 × 40 × 85 mm.
- Your current battery should say about 2 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 35 A or less, the ET4B-BS covers your engine.

## Frequently asked questions about the Exide ET4B-BS

### How much does the Exide ET4B-BS weigh?

The ET4B-BS weighs 0.9 kg.

### Which battery is equivalent to the Exide ET4B-BS?

Only other AGM batteries with its dimensions and polarity: Fulbat FT4B-BS and Motobatt MBT4BB. Neither an EFB nor a conventional battery replaces the ET4B-BS.

### What is the cold cranking current of the Exide ET4B-BS?

35 A to the EN standard, with 2 Ah capacity.

## What it means that the ET4B-BS is AGM

Inside, the ET4B-BS has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Other options if you are unsure about the ET4B-BS

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Full Exide catalogue](https://bateriasonline.es/en/exide-batteries)
- [Exide ETR4A-BS](https://bateriasonline.es/en/exide-etr4a-bs) · 2 Ah, 35 A, 115×50×85 mm

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