# Long 65D31L · Car battery 12V 75Ah

![Long 65D31L · Car battery 12V 75Ah](https://bateriasonline.es/980-home_default/long-65d31l.jpg)

> Long 65D31L: 75 Ah car battery, 302×171×225 mm, D31 case. Equivalent to Long 65D31R. 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-65d31l
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-65D31L
- **MPN**: 65D31L
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | Starting Series |
| Application | Cars |
| Voltage | 12 V |
| Capacity | 75 Ah |
| Length | 302 mm |
| Width | 171 mm |
| Height | 225 mm |
| Weight | 12.5 kg |
| Case size | D31 (306 × 173 × 225 mm) |

## Quick description

The Long 65D31L is a car battery with 12 V and 75 Ah, case size D31 (302 × 171 × 225 mm).

## Description

## Where the Long 65D31L fits

The Long 65D31L is made for petrol and diesel cars without automatic engine stop. The 65D31L covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 75 Ah it sits in the range of compact and mid-size diesels, SUVs and MPVs. The 65D31L belongs to the Long Starting Series range. [The full range of Long batteries](https://bateriasonline.es/en/long-batteries)

## Long 65D31L codes and part numbers

Shops, garages and catalogues identify the 65D31L with these codes:

| Commercial reference | 65D31L |
|---|---|
| Case size (EN) | D31 |

## Long 65D31L vs 95D31R and 75D31R: which one to choose?

Torn between the 65D31L and another similar Long? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long 65D31L (this one) | 75 Ah | 302 × 171 × 225 | 12.5 kg |
| Long 95D31R | 80 Ah | 302 × 171 × 225 | 15.36 kg |
| Long 75D31R | 70 Ah | 305 × 173 × 225 | 16.3 kg |

- Long 95D31R: 5 Ah more, the same D31 case.
- Long 75D31R: 5 Ah less, a different case (305 × 173 × 225 mm).

## Equivalents and alternatives to the Long 65D31L

These batteries share voltage, dimensions and polarity with the 65D31L, with similar capacity: compare cranking power, technology and price before deciding.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long 65D31R | | 75 Ah | 302 × 171 × 225 |

## Check this before ordering the Long 65D31L

- Capacity of the 65D31L: 75 Ah; the same as your current battery or slightly more is fine.
- Measure the space: the 65D31L takes up 302 × 171 × 225 mm (European case size D31).

## Frequently asked questions about the Long 65D31L

### Long 65D31L or 95D31R?

Compared with the 65D31L, the Long 95D31R has 5 Ah more. With 80 Ah, the 95D31R runs longer between charges than the 65D31L (75 Ah). Both measure 302 × 171 × 225 mm, so they fit the same tray.

### How much does the Long 65D31L weigh?

The 65D31L weighs 12.5 kg. For reference, the Long 95D31R (80 Ah) weighs 15.36 kg.

### Which battery is equivalent to the Long 65D31L?

With the same dimensions and polarity as the 65D31L you have the Long 65D31R; choose by cold cranking power, technology and price.

### What case size is the Long 65D31L?

Case size D31: 302 × 171 × 225 mm. The 65D31L fits any standard D31 battery tray such as the Long 65D31R.

### 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.

## Keep comparing: alternatives to the 65D31L

- [All car batteries](https://bateriasonline.es/en/car-batteries)
- [Full Long catalogue](https://bateriasonline.es/en/long-batteries)
- [Long 65D31R](https://bateriasonline.es/en/long-65d31r) · 75 Ah, 302×171×225 mm

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