# Fulmen FL652 · Start-Stop battery 12V 65Ah 650A

![Fulmen FL652 · Start-Stop battery 12V 65Ah 650A](https://bateriasonline.es/2725-home_default/fulmen-fl652.jpg)

> Fulmen FL652: 65 Ah Start-Stop battery, 650 A (EN), 278×175×175 mm, positive terminal on the right, LB3 case, EFB. Equivalent to Exide EL652 and Tudor TL652.

**Category:** [Start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb) → [Fulmen](https://bateriasonline.es/en/fulmen-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulmen-fl652
- **Language**: en
- **Brand**: Fulmen
- **Reference**: BOL-FULMEN-FL652
- **EAN**: 3661024046312
- **MPN**: FL652
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulmen |
| Range | FULMEN EFB |
| Application | Start-Stop cars |
| Technology | EFB |
| Voltage | 12 V |
| Capacity | 65 Ah |
| Cold cranking amps (EN) | 650 A |
| Length | 278 mm |
| Width | 175 mm |
| Height | 175 mm |
| Weight | 16.2 kg |
| Polarity | Positive terminal on the right |
| Case size | LB3 (278 × 175 × 175 mm) |

## Quick description

Fulmen FL652: Start-Stop battery (EFB) with 12 V, 65 Ah and 650 A cold cranking current, case size LB3 (278 × 175 × 175 mm), with the positive terminal on the right.

## Description

## The Fulmen FL652 at a glance

The Fulmen FL652 is a battery for cars with Start-Stop: it withstands many more starting and partial-discharge cycles than a conventional battery and powers the electronics every time the engine stops at the lights. In a Start-Stop car, the FL652 keeps the radio, climate control and lights running with the engine off without losing capacity.
At 65 Ah it is the usual size for compact diesels and mid-size petrol saloons. The FL652 belongs to the Fulmen FULMEN EFB range. [See all Fulmen batteries](https://bateriasonline.es/en/fulmen-batteries)

## Fulmen FL652 codes and part numbers

Look for any of these FL652 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | FL652 |
|---|---|
| EAN | 3661024046312 |
| Case size (EN) | LB3 |
| Not to be confused with | Fulmen FL752 (75 Ah, 730 A), Fulmen FC652 (65 Ah, 540 A) |

## Fulmen FL652 vs FL700 and FK700

What sets the FL652 apart from its neighbours in the Fulmen range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulmen FL652 (this one) | 65 Ah | 650 A | 278 × 175 × 175 | right | 16.2 kg |
| Fulmen FL700 | 70 Ah | 760 A | 278 × 175 × 190 | right | 19.3 kg |
| Fulmen FK700 | 70 Ah | 760 A | 278 × 175 × 190 | right | 20.6 kg |

- Fulmen FL700: 5 Ah more, 110 A more cranking power, a different case (278 × 175 × 190 mm).
- Fulmen FK700: 5 Ah more, 110 A more cranking power, a different case (278 × 175 × 190 mm), AGM technology.

## Equivalents and alternatives to the Fulmen FL652

Alternatives to the FL652 with its dimensions and polarity, in EFB or AGM only: a conventional battery cannot cope with the Start-Stop cycles an EFB is built for.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EL652 | EFB | 65 Ah | 650 A | 278 × 175 × 175 |
| Varta D54 | EFB | 65 Ah | 650 A | 278 × 175 × 175 |
| Tudor TL652 | EFB | 65 Ah | 650 A | 278 × 175 × 175 |
| Deta DL652 | EFB | 65 Ah | 650 A | 278 × 175 × 175 |

## Inside the FL652: EFB technology

The FL652 is an EFB: flooded lead-acid with reinforced plates and separators for Start-Stop. Compared with a conventional battery, the FL652 withstands far more starts and partial discharges.

## Before ordering the FL652, check this

- The FL652 is an EFB: it suits cars that had an EFB or a conventional battery. If yours had an AGM, fit another AGM.
- Cold cranking: 650 A (EN), equal to or higher than the original.
- Your current battery should say about 65 Ah; a little more is also fine.
- With the terminals facing you, the positive terminal of the FL652 is on the right.
- Length, width and height of the FL652: 278 × 175 × 175 mm (European case size LB3).

## Frequently asked questions about the Fulmen FL652

### Fulmen FL652 or FL700?

Compared with the FL652, the Fulmen FL700 has 5 Ah more and 110 A more cranking power. If your current battery says 760 A or more, choose the FL700; if it says 650 A or less, the FL652 is enough. Mind the space: the FL700 measures 278 × 175 × 190 mm.

### Can the Fulmen FL652 be used in a car with Start-Stop?

Yes, the FL652 is an EFB: it suits Start-Stop without brake energy recovery, or cars that already had an EFB. If your car left the factory with an AGM, fit another AGM.

### How much does the Fulmen FL652 weigh?

The FL652 weighs 16.2 kg. For reference, the Fulmen FL700 (70 Ah) weighs 19.3 kg.

### Which battery is equivalent to the Fulmen FL652?

In EFB or AGM, with its dimensions and polarity: Exide EL652, Varta D54 and Tudor TL652. A conventional battery does not replace the FL652.

### What case size is the Fulmen FL652?

Case size LB3: 278 × 175 × 175 mm. The FL652 fits any standard LB3 battery tray such as the Exide EL652.

### Which side is the positive terminal on the Fulmen FL652?

The FL652 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 Fulmen FL652 need?

An automatic charger with a lead-acid or EFB mode. Modern chargers recognise it like a conventional battery; avoid old ones without voltage control.

## More batteries to compare with the FL652

- [All start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb)
- [Full Fulmen catalogue](https://bateriasonline.es/en/fulmen-batteries)
- [Exide EL700](https://bateriasonline.es/en/exide-el700) · 70 Ah, 760 A, 278×175×190 mm
- [Varta N70](https://bateriasonline.es/en/varta-n70) · 70 Ah, 760 A, 278×175×190 mm
- [Tudor TL700](https://bateriasonline.es/en/tudor-tl700) · 70 Ah, 760 A, 278×175×190 mm

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