# Long 55D23R · Car battery 12V 55Ah

![Long 55D23R · Car battery 12V 55Ah](https://bateriasonline.es/954-home_default/long-55d23r.jpg)

> Long 55D23R: 55 Ah car battery, 232×173×225 mm, D23 case. Equivalent to Long 55D23L and Long 55D23L-MF. 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-55d23r
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-55D23R
- **MPN**: 55D23R
- **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 | 173 mm |
| Height | 225 mm |
| Weight | 12.5 kg |
| Case size | D23 (232 × 173 × 225 mm) |

## Quick description

Long 55D23R: car battery with 12 V and 55 Ah, case size D23 (232 × 173 × 225 mm).

## Description

## The Long 55D23R at a glance

The Long 55D23R is made for petrol and diesel cars without automatic engine stop. Its job is to start the engine in the cold with margin to spare and keep the car's electronics powered.
At 55 Ah it covers petrol compacts and small diesels, the best-selling format in Europe. The 55D23R belongs to the Long Starting Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## Long 55D23R codes and part numbers

Shops, garages and catalogues identify the 55D23R with these codes:

| Commercial reference | 55D23R |
|---|---|
| Case size (EN) | D23 |
| Not to be confused with | Long 55D26R (60 Ah), Long 75D23R (65 Ah) |

## Long 55D23R vs 75D23L and 75D23L-MF: which one to choose?

The real differences between the 55D23R and the closest Long models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long 55D23R (this one) | 55 Ah | 232 × 173 × 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 55D23R

These batteries share voltage, dimensions and polarity with the 55D23R, with similar capacity: compare cranking power, technology and price before deciding.

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

## Check this before ordering the Long 55D23R

- With 55 Ah, the 55D23R replaces an original battery of that capacity or slightly less.
- Length, width and height of the 55D23R: 232 × 173 × 225 mm (European case size D23).

## Frequently asked questions about the Long 55D23R

### Long 55D23R or 75D23L?

Compared with the 55D23R, the Long 75D23L has 10 Ah more. With 65 Ah, the 75D23L runs longer between charges than the 55D23R (55 Ah). Both measure 232 × 173 × 225 mm, so they fit the same tray.

### How much does the Long 55D23R weigh?

The 55D23R weighs 12.5 kg. For reference, the Long 75D23L (65 Ah) weighs 12.6 kg.

### Which battery is equivalent to the Long 55D23R?

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

### What case size is the Long 55D23R?

Case size D23: 232 × 173 × 225 mm. The 55D23R fits any standard D23 battery tray such as the Long 55D23L.

### Does the new battery need to be registered in the car?

In cars with energy management (common since 2010) it is worth registering the battery in the control unit so it adjusts charging. In older cars you just connect it.

## Other options if you are unsure about the 55D23R

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

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