# Exide 12N7-3B · Motorcycle battery 12V 7Ah 75A

![Exide 12N7-3B · Motorcycle battery 12V 7Ah 75A](https://bateriasonline.es/150-home_default/exide-12n7-3b.jpg)

> Exide 12N7-3B: 7 Ah motorcycle battery, 75 A (EN), 135×75×135 mm, positive terminal on the right. Equivalent to Exide EB7L-B and Varta YB7L-B.

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

- **Canonical URL**: https://bateriasonline.es/en/exide-12n7-3b
- **Language**: en
- **Brand**: Exide
- **Reference**: BOL-EXIDE-12N7-3B
- **EAN**: 3661024033190
- **MPN**: 12N7-3B
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Exide |
| Range | EXIDE Conventional |
| Application | Motorcycles |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 7 Ah |
| Cold cranking amps (EN) | 75 A |
| Length | 135 mm |
| Width | 75 mm |
| Height | 135 mm |
| Weight | 2.9 kg |
| Polarity | Positive terminal on the right |
| Terminal type | M06 |
| JIS code | 12N7-3 B 12N7-3 A |

## Quick description

Exide 12N7-3B: motorcycle battery with 12 V, 7 Ah and 75 A cold cranking current, measuring 135 × 75 × 135 mm, with the positive terminal on the right.

## Description

## The Exide 12N7-3B at a glance

The Exide 12N7-3B is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. With 7 Ah, the 12N7-3B suits motorcycles and scooters that had a battery of that capacity.
At 7 Ah it covers mid-capacity motorcycles, large scooters and light quads. The 12N7-3B belongs to the Exide EXIDE Conventional range. [More Exide batteries](https://bateriasonline.es/en/exide-batteries)

## Part numbers and codes for the Exide 12N7-3B

Look for any of these 12N7-3B codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | 12N7-3B |
|---|---|
| JIS code | 12N7-3B, 12N7-3A |
| EAN | 3661024033190 |
| Terminal type | M06 |
| Not to be confused with | Exide 12N5-3B (5 Ah, 40 A), Exide 12N9-3B (9 Ah, 85 A) |

## Equivalents and alternatives to the Exide 12N7-3B

Batteries that fit the 12N7-3B's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the 12N7-3B.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Varta YB7L-B | Lead-acid | 7 Ah | 74 A | 136 × 76 × 134 |
| Fulbat FB7L-B2 | Lead-acid | 8.4 Ah | 85 A | 135 × 75 × 133 |
| Exide EB7L-B | Lead-acid | 8 Ah | 85 A | 135 × 75 × 135 |

## Exide 12N7-3B vs EB7L-B and 12N9-3B

The real differences between the 12N7-3B and the closest Exide models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Exide 12N7-3B (this one) | 7 Ah | 75 A | 135 × 75 × 135 | right | 2.9 kg |
| Exide EB7L-B | 8 Ah | 85 A | 135 × 75 × 135 | right | 2.9 kg |
| Exide 12N9-3B | 9 Ah | 85 A | 135 × 75 × 140 | right | 3.1 kg |

- Exide EB7L-B: 1 Ah more, 10 A more cranking power, the same dimensions.
- Exide 12N9-3B: 2 Ah more, 10 A more cranking power, a different case (135 × 75 × 140 mm).

## What to look at before buying the 12N7-3B

- Check the EN amps on your battery: if it says 75 A or less, the 12N7-3B covers your engine.
- Your current battery should say about 7 Ah; a little more is also fine.
- Polarity of the 12N7-3B: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- Length, width and height of the 12N7-3B: 135 × 75 × 135 mm.

## Frequently asked questions about the Exide 12N7-3B

### 12N7-3B or EB7L-B: which one suits me?

Compared with the 12N7-3B, the Exide EB7L-B has 1 Ah more and 10 A more cranking power. If your current battery says 85 A or more, choose the EB7L-B; if it says 75 A or less, the 12N7-3B is enough. Both measure 135 × 75 × 135 mm, so they fit the same tray.

### How much does the Exide 12N7-3B weigh?

2.9 kg, with 7 Ah of capacity. For reference, the Exide EB7L-B (8 Ah) weighs 2.9 kg.

### Which battery is equivalent to the Exide 12N7-3B?

With the same dimensions, polarity and similar capacity you have the Varta YB7L-B, Fulbat FB7L-B2 and Exide EB7L-B. As the 12N7-3B is a conventional battery, an EFB or AGM of the same size also works.

### Which side is the positive terminal on the Exide 12N7-3B?

On the 12N7-3B, 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.

### How do I stop the motorcycle battery going flat in winter?

Connect it to a maintenance charger or disconnect it if the bike will sit for more than a month. A flat motorcycle battery sulphates in a few weeks.

## What it means that the 12N7-3B is lead-acid

The 12N7-3B is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the 12N7-3B needs no special registration: just connect it.

## More batteries to compare with the 12N7-3B

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [Full Exide catalogue](https://bateriasonline.es/en/exide-batteries)
- [Varta YB7L-B](https://bateriasonline.es/en/varta-yb7l-b-507012007) · 7 Ah, 74 A, 136×76×134 mm
- [Fulbat FB7L-B2](https://bateriasonline.es/en/fulbat-fb7l-b2) · 8.4 Ah, 85 A, 135×75×133 mm

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