# Long 46B24L(S)-MF · Car battery 12V 45Ah

![Long 46B24L(S)-MF · Car battery 12V 45Ah](https://bateriasonline.es/926-home_default/long-46b24l-s-mf.jpg)

> Long 46B24L(S)-MF: 45 Ah car battery, 236×127×225 mm, B24 case. Equivalent to Exide EA456 and Exide EB454. 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-46b24l-s-mf
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-46B24L(S)-MF
- **MPN**: 46B24L(S)-MF
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | Starting Series |
| Application | Cars |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Length | 236 mm |
| Width | 127 mm |
| Height | 225 mm |
| Weight | 9 kg |
| Case size | B24 (238 × 129 × 227 mm) |

## Quick description

Long 46B24L(S)-MF: car battery with 12 V and 45 Ah, case size B24 (236 × 127 × 225 mm).

## Description

## Who the Long 46B24L(S)-MF is for

The Long 46B24L(S)-MF is made for petrol and diesel cars without automatic engine stop. The 46B24L(S)-MF covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 45 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The 46B24L(S)-MF belongs to the Long Starting Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## Part numbers and codes for the Long 46B24L(S)-MF

Shops, garages and catalogues identify the 46B24L(S)-MF with these codes:

| Commercial reference | 46B24L(S)-MF |
|---|---|
| Case size (EN) | B24 |

## Long 46B24L(S)-MF vs 36B20L and 36B20R: differences

The real differences between the 46B24L(S)-MF and the closest Long models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long 46B24L(S)-MF (this one) | 45 Ah | 236 × 127 × 225 | 9 kg |
| Long 36B20L | 40 Ah | 197 × 129 × 227 | 7.8 kg |
| Long 36B20R | 40 Ah | 197 × 129 × 227 | 7.8 kg |

- Long 36B20L: 5 Ah less, a different case (197 × 129 × 227 mm).
- Long 36B20R: 5 Ah less, a different case (197 × 129 × 227 mm).

## Equivalents and alternatives to the Long 46B24L(S)-MF

These batteries share voltage, dimensions and polarity with the 46B24L(S)-MF, with similar capacity: compare cranking power, technology and price before deciding.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Varta A11 | AGM | 45 Ah | 236 × 126 × 224 |
| Exide EA456 | Lead-acid | 45 Ah | 237 × 127 × 227 |
| Exide EB454 | Lead-acid | 45 Ah | 237 × 127 × 227 |
| Exide EB455 | Lead-acid | 45 Ah | 237 × 127 × 227 |
| Exide EB456 | Lead-acid | 45 Ah | 237 × 127 × 227 |
| Exide EB457 | Lead-acid | 45 Ah | 237 × 127 × 227 |

## What to look at before buying the 46B24L(S)-MF

- Your current battery should say about 45 Ah; a little more is also fine.
- Length, width and height of the 46B24L(S)-MF: 236 × 127 × 225 mm (European case size B24).

## Frequently asked questions about the Long 46B24L(S)-MF

### 46B24L(S)-MF or 36B20L: which one suits me?

Compared with the 46B24L(S)-MF, the Long 36B20L has 5 Ah less. With 45 Ah, the 46B24L(S)-MF runs longer between charges than the 36B20L (40 Ah). Mind the space: the 36B20L measures 197 × 129 × 227 mm.

### How much does the Long 46B24L(S)-MF weigh?

9 kg, with 45 Ah of capacity. For reference, the Long 36B20L (40 Ah) weighs 7.8 kg.

### Which battery is equivalent to the Long 46B24L(S)-MF?

With the same dimensions and polarity as the 46B24L(S)-MF you have the Varta A11, Exide EA456 and Exide EB454; choose by cold cranking power, technology and price.

### What case size is the Long 46B24L(S)-MF?

Case size B24: 236 × 127 × 225 mm. The 46B24L(S)-MF fits any standard B24 battery tray such as the Varta A11.

### 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.

## More batteries to compare with the 46B24L(S)-MF

- [All car batteries](https://bateriasonline.es/en/car-batteries)
- [More Long models](https://bateriasonline.es/en/long-batteries)
- [Long 46B24R-MF](https://bateriasonline.es/en/long-46b24r-mf) · 45 Ah, 236×127×225 mm
- [Long 46B24R(S)-MF](https://bateriasonline.es/en/long-46b24r-s-mf) · 45 Ah, 236×127×225 mm
- [Long 46B24R](https://bateriasonline.es/en/long-46b24r) · 45 Ah, 236×127×224 mm

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