# Fulmen FB457 · Car battery 12V 45Ah 330A

![Fulmen FB457 · Car battery 12V 45Ah 330A](https://bateriasonline.es/2933-home_default/fulmen-fb457.jpg)

> Fulmen FB457: 45 Ah car battery, 330 A (EN), 237×127×227 mm, positive terminal on the left, B24 case. Equivalent to Exide EB455 and Exide EB457.

**Category:** [Car batteries](https://bateriasonline.es/en/car-batteries) → [Fulmen](https://bateriasonline.es/en/fulmen-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulmen-fb457
- **Language**: en
- **Brand**: Fulmen
- **Reference**: BOL-FULMEN-FB457
- **EAN**: 3661024044363
- **MPN**: FB457
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulmen |
| Range | FULMEN Formula |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Cold cranking amps (EN) | 330 A |
| Length | 237 mm |
| Width | 127 mm |
| Height | 227 mm |
| Weight | 11.4 kg |
| Polarity | Positive terminal on the left |
| Case size | B24 (238 × 129 × 227 mm) |

## Quick description

The Fulmen FB457 is a car battery with 12 V, 45 Ah and 330 A cold cranking current, case size B24 (237 × 127 × 227 mm), with the positive terminal on the left. With the positive terminal on the right, the exact counterpart is the Fulmen FB454.

## Description

## Where the Fulmen FB457 fits

The Fulmen FB457 is made for petrol and diesel cars without automatic engine stop. The FB457 covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 45 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The FB457 belongs to the Fulmen FULMEN Formula range. [More Fulmen batteries](https://bateriasonline.es/en/fulmen-batteries)

## Part numbers and codes for the Fulmen FB457

Shops, garages and catalogues identify the FB457 with these codes:

| Commercial reference | FB457 |
|---|---|
| EAN | 3661024044363 |
| Case size (EN) | B24 |
| Not to be confused with | Fulmen FB357 (35 Ah, 240 A), Fulmen FB450 (45 Ah, 330 A, positive terminal on the right), Fulmen FB451 (45 Ah, 330 A) |

## Fulmen FB457 vs FB356A, FB454 and FB357: differences

How the FB457 compares with Fulmen batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulmen FB457 (this one) | 45 Ah | 330 A | 237 × 127 × 227 | left | 11.4 kg |
| Fulmen FB356A | 35 Ah | 240 A | 187 × 127 × 220 | – | 8.9 kg |
| Fulmen FB454 | 45 Ah | 330 A | 237 × 127 × 227 | right | 11.4 kg |
| Fulmen FB357 | 35 Ah | 240 A | 187 × 127 × 220 | – | 8.9 kg |

- Fulmen FB356A: 10 Ah less, 90 A less cranking power, a different case (187 × 127 × 220 mm).
- If the positive terminal of your battery is on the other side, the one you need is the Fulmen FB454 (positive terminal on the right).
- Fulmen FB357: 10 Ah less, 90 A less cranking power, a different case (187 × 127 × 220 mm).

## Equivalents and alternatives to the Fulmen FB457

Batteries that fit the FB457's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the FB457.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EB455 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Exide EB457 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Tudor TB455 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Tudor TB457 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Deta DB455 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Deta DB456 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |

## What it means that the FB457 is lead-acid

Inside, the FB457 is classic lead-acid: liquid electrolyte and lead plates. It is a robust, well-known technology with a good capacity-to-price ratio, and still the basis of most cars, trucks and traction equipment.

## Before ordering the FB457, check this

- If your car has Start-Stop, the FB457 is not the right one: it needs an EFB or an AGM.
- Check the EN amps on your battery: if it says 330 A or less, the FB457 covers your engine.
- With 45 Ah, the FB457 replaces an original battery of that capacity or slightly less.
- With the terminals facing you, the positive terminal of the FB457 is on the left.
- The FB457 needs 237 × 127 × 227 mm of space (European case size B24): measure it with the hold-down clamp in place.

## Frequently asked questions about the Fulmen FB457

### FB457 or FB356A: which one suits me?

Compared with the FB457, the Fulmen FB356A has 10 Ah less and 90 A less cranking power. The FB457 cranks harder; the FB356A is only a good option if your original battery says 240 A or less. Mind the space: the FB356A measures 187 × 127 × 220 mm.

### Fulmen FB457 or FB454: what is the difference?

Only the polarity: the FB457 has the positive terminal on the left and the FB454 the positive terminal on the right. Capacity (45 Ah), cranking power and dimensions are identical.

### Can the Fulmen FB457 be used in a car with Start-Stop?

No. The FB457 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Fulmen FB457 weigh?

11.4 kg, with 45 Ah of capacity. For reference, the Fulmen FB356A (35 Ah) weighs 8.9 kg.

### Which battery is equivalent to the Fulmen FB457?

With the same dimensions, polarity and similar capacity you have the Exide EB455, Exide EB457 and Tudor TB455. As the FB457 is a conventional battery, an EFB or AGM of the same size also works.

### What case size is the Fulmen FB457?

Case size B24: 237 × 127 × 227 mm. The FB457 fits any standard B24 battery tray such as the Exide EB455.

## More batteries to compare with the FB457

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [More Fulmen models](https://bateriasonline.es/en/fulmen-batteries)
- [Exide EB455](https://bateriasonline.es/en/exide-eb455) · 45 Ah, 330 A, 237×127×227 mm
- [Exide EB457](https://bateriasonline.es/en/exide-eb457) · 45 Ah, 330 A, 237×127×227 mm

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