# Long 65D31R · Car battery 12V 75Ah

![Long 65D31R · Car battery 12V 75Ah](https://bateriasonline.es/983-home_default/long-65d31r.jpg)

> Long 65D31R: 75 Ah car battery, 302×171×225 mm, D31 case. Equivalent to Long 65D31L. Ask for a no-obligation quote.

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

- **Canonical URL**: https://bateriasonline.es/en/long-65d31r
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-65D31R
- **MPN**: 65D31R
- **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

Long 65D31R: car battery with 12 V and 75 Ah, case size D31 (302 × 171 × 225 mm).

## Description

## The Long 65D31R at a glance

The Long 65D31R is made for petrol and diesel cars without automatic engine stop. If your car has no Start-Stop and had a 75 Ah battery, the 65D31R is a direct replacement.
At 75 Ah it sits in the range of compact and mid-size diesels, SUVs and MPVs. The 65D31R belongs to the Long Starting Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## Long 65D31R vs 95D31R and 75D31R

What sets the 65D31R apart from its neighbours in the Long range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long 65D31R (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).

## Long 65D31R codes and part numbers

This is how the Long 65D31R appears on the label and in parts catalogues:

| Commercial reference | 65D31R |
|---|---|
| Case size (EN) | D31 |
| Not to be confused with | Long 75D31R (70 Ah), Long 95D31R (80 Ah) |

## Equivalents and alternatives to the Long 65D31R

These batteries share voltage, dimensions and polarity with the 65D31R, with similar capacity: compare cranking power, technology and price before deciding.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long 65D31L | | 75 Ah | 302 × 171 × 225 |

## What to look at before buying the 65D31R

- Measure the space: the 65D31R takes up 302 × 171 × 225 mm (European case size D31).
- Capacity of the 65D31R: 75 Ah; the same as your current battery or slightly more is fine.

## Frequently asked questions about the Long 65D31R

### Long 65D31R or 95D31R?

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

### How much does the Long 65D31R weigh?

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

### Which battery is equivalent to the Long 65D31R?

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

### What case size is the Long 65D31R?

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

### How long does a car battery like the Long 65D31R last?

Between 4 and 6 years in normal use. Very short trips, extreme heat and leaving the car parked for weeks without starting it shorten its life.

## More batteries to compare with the 65D31R

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [More Long models](https://bateriasonline.es/en/long-batteries)
- [Long 65D31L](https://bateriasonline.es/en/long-65d31l) · 75 Ah, 302×171×225 mm

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