# Fulmen FB442 · Car battery 12V 44Ah 420A

![Fulmen FB442 · Car battery 12V 44Ah 420A](https://bateriasonline.es/2914-home_default/fulmen-fb442.jpg)

> Fulmen FB442: 44 Ah car battery, 420 A (EN), 207×175×175 mm, positive terminal on the right, LB1 case. Equivalent to Exide EB442 and Exide EA472.

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

- **Canonical URL**: https://bateriasonline.es/en/fulmen-fb442
- **Language**: en
- **Brand**: Fulmen
- **Reference**: BOL-FULMEN-FB442
- **EAN**: 3661024044608
- **MPN**: FB442
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulmen |
| Range | FULMEN Formula |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 44 Ah |
| Cold cranking amps (EN) | 420 A |
| Length | 207 mm |
| Width | 175 mm |
| Height | 175 mm |
| Weight | 10.6 kg |
| Polarity | Positive terminal on the right |
| Case size | LB1 (207 × 175 × 175 mm) |

## Quick description

The Fulmen FB442 is a car battery with 12 V, 44 Ah and 420 A cold cranking current, case size LB1 (207 × 175 × 175 mm), with the positive terminal on the right.

## Description

## Who the Fulmen FB442 is for

The Fulmen FB442 is made for petrol and diesel cars without automatic engine stop. If your car has no Start-Stop and had a 44 Ah battery, the FB442 is a direct replacement.
At 44 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The FB442 belongs to the Fulmen FULMEN Formula range. [The full range of Fulmen batteries](https://bateriasonline.es/en/fulmen-batteries)

## Fulmen FB442 vs FA472 and FC412: which one to choose?

How the FB442 compares with Fulmen batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulmen FB442 (this one) | 44 Ah | 420 A | 207 × 175 × 175 | right | 10.6 kg |
| Fulmen FA472 | 47 Ah | 450 A | 207 × 175 × 175 | right | 11.4 kg |
| Fulmen FC412 | 41 Ah | 370 A | 207 × 175 × 175 | right | 10.6 kg |

- Fulmen FA472: 3 Ah more, 30 A more cranking power, the same LB1 case.
- Fulmen FC412: 3 Ah less, 50 A less cranking power, the same LB1 case.

## Part numbers and codes for the Fulmen FB442

This is how the Fulmen FB442 appears on the label and in parts catalogues:

| Commercial reference | FB442 |
|---|---|
| EAN | 3661024044608 |
| Case size (EN) | LB1 |
| Not to be confused with | Fulmen FB440 (44 Ah, 400 A) |

## Equivalents and alternatives to the Fulmen FB442

Batteries that fit the FB442's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the FB442.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EB442 | Lead-acid | 44 Ah | 420 A | 207 × 175 × 175 |
| Tudor TB442 | Lead-acid | 44 Ah | 420 A | 207 × 175 × 175 |
| Deta DB442 | Lead-acid | 44 Ah | 420 A | 207 × 175 × 175 |
| Varta B18 | Lead-acid | 44 Ah | 440 A | 207 × 175 × 175 |
| Kronobat PB-44.0B | Lead-acid | 44 Ah | 440 A | 207 × 175 × 175 |
| Exide EA472 | Lead-acid | 47 Ah | 450 A | 207 × 175 × 175 |

Its Bosch equivalent is the Bosch S4 001, the same as for the Varta B18. Bosch is not part of our catalogue; we list it so you can compare.

## Check this before ordering the Fulmen FB442

- Length, width and height of the FB442: 207 × 175 × 175 mm (European case size LB1).
- The FB442 has the positive terminal on the right: compare it with your current battery.
- Your current battery should say about 44 Ah; a little more is also fine.
- The FB442 delivers 420 A cold cranking (EN standard); do not go below what your original battery states.
- If your car has Start-Stop, the FB442 is not the right one: it needs an EFB or an AGM.

## Inside the FB442: lead-acid technology

Inside, the FB442 is classic lead-acid: liquid electrolyte and lead plates. If the FB442 is left discharged for weeks it sulphates: a maintenance charger prevents this.

## Frequently asked questions about the Fulmen FB442

### FB442 or FA472: which one suits me?

Compared with the FB442, the Fulmen FA472 has 3 Ah more and 30 A more cranking power. If your current battery says 450 A or more, choose the FA472; if it says 420 A or less, the FB442 is enough. Both measure 207 × 175 × 175 mm, so they fit the same tray.

### Can the Fulmen FB442 be used in a car with Start-Stop?

No. The FB442 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Fulmen FB442 weigh?

10.6 kg, with 44 Ah of capacity. For reference, the Fulmen FA472 (47 Ah) weighs 11.4 kg.

### Which battery is equivalent to the Fulmen FB442?

With the same dimensions, polarity and similar capacity you have the Exide EB442, Tudor TB442 and Deta DB442. As the FB442 is a conventional battery, an EFB or AGM of the same size also works. Its Bosch equivalent is the Bosch S4 001, the same as for the Varta B18. Bosch is not part of our catalogue; we list it so you can compare.

### What case size is the Fulmen FB442?

Case size LB1: 207 × 175 × 175 mm. The FB442 fits any standard LB1 battery tray such as the Exide EB442.

### Which side is the positive terminal on the Fulmen FB442?

On the FB442, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

### Which charger does the Fulmen FB442 need?

An automatic lead-acid charger with cut-off or maintenance mode, rated at 10 to 20% of its capacity in amps. If it is a vented type, check the electrolyte level and top up only with distilled water.

## More batteries to compare with the FB442

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [The whole Fulmen range](https://bateriasonline.es/en/fulmen-batteries)
- [Exide EB442](https://bateriasonline.es/en/exide-eb442) · 44 Ah, 420 A, 207×175×175 mm
- [Tudor TB442](https://bateriasonline.es/en/tudor-tb442) · 44 Ah, 420 A, 207×175×175 mm

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