# Fulmen FB704 · Car battery 12V 70Ah 540A

![Fulmen FB704 · Car battery 12V 70Ah 540A](https://bateriasonline.es/2960-home_default/fulmen-fb704.jpg)

> Fulmen FB704: 70 Ah car battery, 540 A (EN), 270×173×222 mm, positive terminal on the right. Equivalent to Exide EB704 and Tudor TB704.

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

- **Canonical URL**: https://bateriasonline.es/en/fulmen-fb704
- **Language**: en
- **Brand**: Fulmen
- **Reference**: BOL-FULMEN-FB704
- **EAN**: 3661024044431
- **MPN**: FB704
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulmen |
| Range | FULMEN Formula |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 70 Ah |
| Cold cranking amps (EN) | 540 A |
| Length | 270 mm |
| Width | 173 mm |
| Height | 222 mm |
| Weight | 16.1 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Fulmen FB704 is a car battery with 12 V, 70 Ah and 540 A cold cranking current, measuring 270 × 173 × 222 mm, with the positive terminal on the right. Need the positive terminal on the left? The same battery is the Fulmen FB705.

## Description

## Where the Fulmen FB704 fits

The Fulmen FB704 is made for petrol and diesel cars without automatic engine stop. The FB704 covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 70 Ah it is the usual size for compact diesels and mid-size petrol saloons. The FB704 belongs to the Fulmen FULMEN Formula range. [The full range of Fulmen batteries](https://bateriasonline.es/en/fulmen-batteries)

## Fulmen FB704 vs FA754, FB705 and FL754: differences

How the FB704 compares with Fulmen batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulmen FB704 (this one) | 70 Ah | 540 A | 270 × 173 × 222 | right | 16.1 kg |
| Fulmen FA754 | 75 Ah | 630 A | 270 × 173 × 222 | right | 17.4 kg |
| Fulmen FB705 | 70 Ah | 540 A | 270 × 173 × 222 | left | 16.1 kg |
| Fulmen FL754 | 75 Ah | 750 A | 260 × 173 × 222 | right | 19 kg |

- Fulmen FA754: 5 Ah more, 90 A more cranking power, the same dimensions.
- If the positive terminal of your battery is on the other side, the one you need is the Fulmen FB705 (positive terminal on the left).
- Fulmen FL754: 5 Ah more, 210 A more cranking power, a different case (260 × 173 × 222 mm), EFB technology.

## Part numbers and codes for the Fulmen FB704

This is how the Fulmen FB704 appears on the label and in parts catalogues:

| Commercial reference | FB704 |
|---|---|
| EAN | 3661024044431 |
| Not to be confused with | Fulmen FB504 (50 Ah, 360 A), Fulmen FB604 (60 Ah, 480 A), Fulmen FB705 (70 Ah, 540 A, positive terminal on the left) |

## Equivalents and alternatives to the Fulmen FB704

Batteries that fit the FB704's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the FB704.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EB704 | Lead-acid | 70 Ah | 540 A | 270 × 173 × 222 |
| Tudor TB704 | Lead-acid | 70 Ah | 540 A | 270 × 173 × 222 |
| Deta DB704 | Lead-acid | 70 Ah | 540 A | 270 × 173 × 222 |

## What to look at before buying the FB704

- Length, width and height of the FB704: 270 × 173 × 222 mm.
- Polarity of the FB704: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- With 70 Ah, the FB704 replaces an original battery of that capacity or slightly less.
- Check the EN amps on your battery: if it says 540 A or less, the FB704 covers your engine.
- If your car has Start-Stop, the FB704 is not the right one: it needs an EFB or an AGM.

## What it means that the FB704 is lead-acid

Inside, the FB704 is classic lead-acid: liquid electrolyte and lead plates. If the FB704 is left discharged for weeks it sulphates: a maintenance charger prevents this.

## Frequently asked questions about the Fulmen FB704

### FB704 or FA754: which one suits me?

Compared with the FB704, the Fulmen FA754 has 5 Ah more and 90 A more cranking power. If your current battery says 630 A or more, choose the FA754; if it says 540 A or less, the FB704 is enough. Both measure 270 × 173 × 222 mm, so they fit the same tray.

### Fulmen FB704 or FB705: what is the difference?

Only the polarity: the FB704 has the positive terminal on the right and the FB705 the positive terminal on the left. Capacity (70 Ah), cranking power and dimensions are identical.

### Can the Fulmen FB704 be used in a car with Start-Stop?

No. The FB704 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM; in this same size there is the Fulmen FL754.

### How much does the Fulmen FB704 weigh?

16.1 kg, with 70 Ah of capacity. For reference, the Fulmen FA754 (75 Ah) weighs 17.4 kg.

### Which battery is equivalent to the Fulmen FB704?

With the same dimensions, polarity and similar capacity you have the Exide EB704, Tudor TB704 and Deta DB704. As the FB704 is a conventional battery, an EFB or AGM of the same size also works.

## Keep comparing: alternatives to the FB704

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [The whole Fulmen range](https://bateriasonline.es/en/fulmen-batteries)
- [Exide EB704](https://bateriasonline.es/en/exide-eb704) · 70 Ah, 540 A, 270×173×222 mm
- [Tudor TB704](https://bateriasonline.es/en/tudor-tb704) · 70 Ah, 540 A, 270×173×222 mm

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