# Long 55D23L-MF · Car battery 12V 55Ah

![Long 55D23L-MF · Car battery 12V 55Ah](https://bateriasonline.es/951-home_default/long-55d23l-mf.jpg)

> Long 55D23L-MF: 55 Ah car battery, 232×171×225 mm, D23 case. Equivalent to Long 55D23R-MF and Long 55D23L. Price on request: ask for a free quote.

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

- **Canonical URL**: https://bateriasonline.es/en/long-55d23l-mf
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-55D23L-MF
- **MPN**: 55D23L-MF
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | Starting Series |
| Application | Cars |
| Voltage | 12 V |
| Capacity | 55 Ah |
| Length | 232 mm |
| Width | 171 mm |
| Height | 225 mm |
| Weight | 12.5 kg |
| Case size | D23 (232 × 173 × 225 mm) |

## Quick description

Long 55D23L-MF: car battery with 12 V and 55 Ah, case size D23 (232 × 171 × 225 mm).

## Description

## Who the Long 55D23L-MF is for

The Long 55D23L-MF is a starter battery for cars without Start-Stop: it delivers the current the starter motor needs and then powers lights, control units and audio with the engine off. The 55D23L-MF covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 55 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. The 55D23L-MF belongs to the Long Starting Series range. [The full range of Long batteries](https://bateriasonline.es/en/long-batteries)

## Part numbers and codes for the Long 55D23L-MF

Look for any of these 55D23L-MF codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | 55D23L-MF |
|---|---|
| Case size (EN) | D23 |
| Not to be confused with | Long 75D23L-MF (65 Ah) |

## Long 55D23L-MF vs 75D23L and 75D23L-MF

The real differences between the 55D23L-MF and the closest Long models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long 55D23L-MF (this one) | 55 Ah | 232 × 171 × 225 | 12.5 kg |
| Long 75D23L | 65 Ah | 232 × 173 × 225 | 12.6 kg |
| Long 75D23L-MF | 65 Ah | 232 × 173 × 225 | 15.8 kg |

- Long 75D23L: 10 Ah more, the same D23 case.
- Long 75D23L-MF: 10 Ah more, the same D23 case.

## Equivalents and alternatives to the Long 55D23L-MF

These batteries share voltage, dimensions and polarity with the 55D23L-MF, with similar capacity: compare cranking power, technology and price before deciding.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long 55D23R-MF | | 55 Ah | 232 × 171 × 225 |
| Long 55D23L | | 55 Ah | 232 × 173 × 225 |
| Long 55D23R | | 55 Ah | 232 × 173 × 225 |

## What to look at before buying the 55D23L-MF

- Your current battery should say about 55 Ah; a little more is also fine.
- Length, width and height of the 55D23L-MF: 232 × 171 × 225 mm (European case size D23).

## Frequently asked questions about the Long 55D23L-MF

### 55D23L-MF or 75D23L: which one suits me?

Compared with the 55D23L-MF, the Long 75D23L has 10 Ah more. With 65 Ah, the 75D23L runs longer between charges than the 55D23L-MF (55 Ah). Both measure 232 × 171 × 225 mm, so they fit the same tray.

### How much does the Long 55D23L-MF weigh?

12.5 kg, with 55 Ah of capacity. For reference, the Long 75D23L (65 Ah) weighs 12.6 kg.

### Which battery is equivalent to the Long 55D23L-MF?

With the same dimensions and polarity as the 55D23L-MF you have the Long 55D23R-MF, Long 55D23L and Long 55D23R; choose by cold cranking power, technology and price.

### What case size is the Long 55D23L-MF?

Case size D23: 232 × 171 × 225 mm. The 55D23L-MF fits any standard D23 battery tray such as the Long 55D23R-MF.

## More batteries to compare with the 55D23L-MF

- [Other car batteries](https://bateriasonline.es/en/car-batteries)
- [Full Long catalogue](https://bateriasonline.es/en/long-batteries)
- [Long 55D23R-MF](https://bateriasonline.es/en/long-55d23r-mf) · 55 Ah, 232×171×225 mm
- [Long 55D23L](https://bateriasonline.es/en/long-55d23l) · 55 Ah, 232×173×225 mm

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