# Motobatt MB5U · Motorcycle battery 12V 7Ah 90A

![Motobatt MB5U · Motorcycle battery 12V 7Ah 90A](https://bateriasonline.es/3153-home_default/motobatt-mb5u.jpg)

> Motobatt MB5U: 7 Ah motorcycle battery, 90 A (EN), 120×60×130 mm, AGM. VAT included, shipping cost shown before you pay, 14-day returns.

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

- **Canonical URL**: https://bateriasonline.es/en/motobatt-mb5u
- **Language**: en
- **Brand**: Motobatt
- **Reference**: BOL-MOTOBATT-MB5U
- **MPN**: MB5U
- **Price**: 185,22 € (VAT incl., Spain)
- **Last updated**: 2026-11-09

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Motobatt |
| Range | MOTOBATT QUADFLEX |
| Application | Motorcycles |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 7 Ah |
| Cold cranking amps (EN) | 90 A |
| Length | 120 mm |
| Width | 60 mm |
| Height | 130 mm |
| Weight | 2.3 kg |
| JIS code | YB5 LB 12N5-3 B |

## Quick description

The Motobatt MB5U is a motorcycle battery (AGM) with 12 V, 7 Ah and 90 A cold cranking current, measuring 120 × 60 × 130 mm.

## Description

## Where the Motobatt MB5U fits

The Motobatt MB5U is made for motorcycles, scooters and quads. It is worth keeping the MB5U on a maintenance charger if the bike is laid up over winter.
At 7 Ah it covers mid-capacity motorcycles, large scooters and light quads. The MB5U belongs to the Motobatt MOTOBATT QUADFLEX range. [See all Motobatt batteries](https://bateriasonline.es/en/motobatt-batteries)

## Part numbers and codes for the Motobatt MB5U

Shops, garages and catalogues identify the MB5U with these codes:

| Commercial reference | MB5U |
|---|---|
| Not to be confused with | Motobatt MB3U (3.8 Ah, 50 A), Motobatt MB5.5U (7 Ah, 90 A), Motobatt MB7U (6.5 Ah, 100 A) |

## Equivalents and alternatives to the Motobatt MB5U

We have no other battery with exactly the dimensions and polarity of the MB5U. Browse the rest of our [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries) to compare close options.

## Motobatt MB5U vs MBTX7U and MB7BB: which one to choose?

How the MB5U compares with Motobatt batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Motobatt MB5U (this one) | 7 Ah | 90 A | 120 × 60 × 130 | 2.3 kg |
| Motobatt MBTX7U | 8 Ah | 115 A | 114 × 70 × 128 | 2.6 kg |
| Motobatt MB7BB | 9 Ah | 150 A | 150 × 60 × 130 | 3 kg |

- Motobatt MBTX7U: 1 Ah more, 25 A more cranking power, a different case (114 × 70 × 128 mm).
- Motobatt MB7BB: 2 Ah more, 60 A more cranking power, a different case (150 × 60 × 130 mm).

## Check this before ordering the Motobatt MB5U

- Check the EN amps on your battery: if it says 90 A or less, the MB5U covers your engine.
- Capacity of the MB5U: 7 Ah; the same as your current battery or slightly more is fine.
- The MB5U needs 120 × 60 × 130 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Motobatt MB5U

### MB5U or MBTX7U: which one suits me?

Compared with the MB5U, the Motobatt MBTX7U has 1 Ah more and 25 A more cranking power. If your current battery says 115 A or more, choose the MBTX7U; if it says 90 A or less, the MB5U is enough. Mind the space: the MBTX7U measures 114 × 70 × 128 mm.

### How much does the Motobatt MB5U weigh?

2.3 kg, with 7 Ah of capacity. For reference, the Motobatt MBTX7U (8 Ah) weighs 2.6 kg.

### What are the dimensions and weight of the Motobatt MB5U?

It measures 120 × 60 × 130 mm and weighs 2.3 kg. Compare these figures with the tray and the hold-down clamp before ordering.

## Inside the MB5U: AGM technology

Inside, the MB5U has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Keep comparing: alternatives to the MB5U

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

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