# Long 36B20R · Car battery 12V 40Ah

![Long 36B20R · Car battery 12V 40Ah](https://bateriasonline.es/911-home_default/long-36b20r.jpg)

> Long 36B20R: 40 Ah car battery, 197×129×227 mm. Equivalent to Long 36B20L and Long 36B20R(S). 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-36b20r
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-36B20R
- **MPN**: 36B20R
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | Starting Series |
| Application | Cars |
| Voltage | 12 V |
| Capacity | 40 Ah |
| Length | 197 mm |
| Width | 129 mm |
| Height | 227 mm |
| Weight | 7.8 kg |

## Quick description

The Long 36B20R is a car battery with 12 V and 40 Ah, measuring 197 × 129 × 227 mm.

## Description

## Where the Long 36B20R fits

The Long 36B20R is made for petrol and diesel cars without automatic engine stop. The 36B20R covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 40 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The 36B20R belongs to the Long Starting Series range. [More Long batteries](https://bateriasonline.es/en/long-batteries)

## Long 36B20R vs 32B20R and 34B19L(S): which one to choose?

How the 36B20R compares with Long batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long 36B20R (this one) | 40 Ah | 197 × 129 × 227 | 7.8 kg |
| Long 32B20R | 35 Ah | 197 × 129 × 227 | 6.1 kg |
| Long 34B19L(S) | 33 Ah | 197 × 129 × 227 | 6.1 kg |

- Long 32B20R: 5 Ah less, the same dimensions.
- Long 34B19L(S): 7 Ah less, the same dimensions.

## Long 36B20R codes and part numbers

This is how the Long 36B20R appears on the label and in parts catalogues:

| Commercial reference | 36B20R |
|---|---|
| Not to be confused with | Long 32B20R (35 Ah) |

## Equivalents and alternatives to the Long 36B20R

These batteries share voltage, dimensions and polarity with the 36B20R, with similar capacity: compare cranking power, technology and price before deciding.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Long 36B20L | | 40 Ah | 197 × 129 × 227 |
| Long 36B20R(S) | | 40 Ah | 197 × 129 × 227 |

## Before ordering the 36B20R, check this

- Length, width and height of the 36B20R: 197 × 129 × 227 mm.
- Your current battery should say about 40 Ah; a little more is also fine.

## Frequently asked questions about the Long 36B20R

### Long 36B20R or 32B20R?

Compared with the 36B20R, the Long 32B20R has 5 Ah less. With 40 Ah, the 36B20R runs longer between charges than the 32B20R (35 Ah). Both measure 197 × 129 × 227 mm, so they fit the same tray.

### How much does the Long 36B20R weigh?

The 36B20R weighs 7.8 kg. For reference, the Long 32B20R (35 Ah) weighs 6.1 kg.

### Which battery is equivalent to the Long 36B20R?

With the same dimensions and polarity as the 36B20R you have the Long 36B20L and Long 36B20R(S); choose by cold cranking power, technology and price.

### How long does a car battery like the Long 36B20R 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.

## Keep comparing: alternatives to the 36B20R

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [More Long models](https://bateriasonline.es/en/long-batteries)
- [Long 36B20L](https://bateriasonline.es/en/long-36b20l) · 40 Ah, 197×129×227 mm
- [Long 36B20R(S)](https://bateriasonline.es/en/long-36b20r-s) · 40 Ah, 197×129×227 mm

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