# Exide 12N5-3B · Motorcycle battery 12V 5Ah 40A

![Exide 12N5-3B · Motorcycle battery 12V 5Ah 40A](https://bateriasonline.es/105-home_default/exide-12n5-3b.jpg)

> Exide 12N5-3B: 5 Ah motorcycle battery, 40 A (EN), 120×60×130 mm, positive terminal on the right.

**Category:** [Motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) → [Exide](https://bateriasonline.es/en/exide-batteries)

- **Canonical URL**: https://bateriasonline.es/en/exide-12n5-3b
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-12N5-3B
- **EAN**: 3661024033121
- **MPN**: 12N5-3B
- **Price**: 37,73 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE MOTORCYCLE CONVENTIONAL 12 V |
| Application | Motorcycles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 5 Ah |
| Cold cranking amps (EN) | 40 A |
| Length | 120 mm |
| Width | 60 mm |
| Height | 130 mm |
| Weight | 2 kg |
| Polarity | Positive terminal on the right |
| Terminal type | M06 |
| JIS code | 12N5-3 B |

## Quick description

The Exide 12N5-3B is a motorcycle battery with 12 V, 5 Ah and 40 A cold cranking current, measuring 120 × 60 × 130 mm, with the positive terminal on the right.

## Description

## Who the Exide 12N5-3B is for

The Exide 12N5-3B is made for motorcycles, scooters and quads. It is worth keeping the 12N5-3B on a maintenance charger if the bike is laid up over winter.
At 5 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. The 12N5-3B belongs to the Exide EXIDE MOTORCYCLE CONVENTIONAL 12V range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Part numbers and codes for the Exide 12N5-3B

This is how the Exide 12N5-3B appears on the label and in parts catalogues:

| Commercial reference | 12N5-3B |
|---|---|
| JIS code | 12N5-3B |
| EAN | 3661024033121 |
| Terminal type | M06 |
| Not to be confused with | Exide 12N5,5-3B (6 Ah, 45 A), Exide 12N9-3B (9 Ah, 85 A), Exide 12N7-3B (7 Ah, 75 A) |

## Equivalents and alternatives to the Exide 12N5-3B

We have no other battery with exactly the dimensions and polarity of the 12N5-3B. Browse the rest of our [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) to compare close options.

## Exide 12N5-3B vs EB5L-B and 12N5,5-3B: differences

Torn between the 12N5-3B and another similar Exide? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide 12N5-3B (this one) | 5 Ah | 40 A | 120 × 60 × 130 | right | 2 kg |
| Exide EB5L-B | 5 Ah | 65 A | 120 × 60 × 130 | right | 2 kg |
| Exide 12N5,5-3B | 6 Ah | 45 A | 135 × 60 × 130 | right | 2.1 kg |

- Exide EB5L-B: the same capacity, 25 A more cranking power, the same dimensions.
- Exide 12N5,5-3B: 1 Ah more, 5 A more cranking power, a different case (135 × 60 × 130 mm).

## Check this before ordering the Exide 12N5-3B

- The 12N5-3B needs 120 × 60 × 130 mm of space: measure it with the hold-down clamp in place.
- Polarity of the 12N5-3B: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Capacity of the 12N5-3B: 5 Ah; the same as your current battery or slightly more is fine.
- The 12N5-3B delivers 40 A cold cranking (EN standard); do not go below what your original battery states.

## Frequently asked questions about the Exide 12N5-3B

### 12N5-3B or EB5L-B: which one suits me?

Compared with the 12N5-3B, the Exide EB5L-B has 25 A more cranking power. If your current battery says 65 A or more, choose the EB5L-B; if it says 40 A or less, the 12N5-3B is enough. Both measure 120 × 60 × 130 mm, so they fit the same tray.

### How much does the Exide 12N5-3B weigh?

2 kg, with 5 Ah of capacity. For reference, the Exide EB5L-B (5 Ah) weighs 2 kg.

### Which side is the positive terminal on the Exide 12N5-3B?

On the 12N5-3B, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

## What it means that the 12N5-3B is lead-acid

Inside, the 12N5-3B is classic lead-acid: liquid electrolyte and lead plates. If the 12N5-3B is left discharged for weeks it sulphates: a maintenance charger prevents this.

## Keep comparing: alternatives to the 12N5-3B

- [Other motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Exide range](https://bateriasonline.es/en/exide-batteries)

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