# Motobatt MB12U · Motorcycle battery 12V 15Ah 160A

![Motobatt MB12U · Motorcycle battery 12V 15Ah 160A](https://bateriasonline.es/3103-home_default/motobatt-mb12u.jpg)

> Motobatt MB12U: 15 Ah motorcycle battery, 160 A (EN), 135×80×161 mm, AGM. VAT included and shipping cost shown before you pay.

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

- **Canonical URL**: https://bateriasonline.es/en/motobatt-mb12u
- **Language**: en
- **Brand**: Motobatt
- **Reference**: BOL-MOTOBATT-MB12U
- **MPN**: MB12U
- **Price**: 166,51 € (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 | 15 Ah |
| Cold cranking amps (EN) | 160 A |
| Length | 135 mm |
| Width | 80 mm |
| Height | 161 mm |
| Weight | 4.4 kg |
| JIS code | YB12 AA YB12 ALA YB12ALA2 YB12 AB YB12 CA |

## Quick description

Motobatt MB12U: motorcycle battery (AGM) with 12 V, 15 Ah and 160 A cold cranking current, measuring 135 × 80 × 161 mm.

## Description

## The Motobatt MB12U at a glance

The Motobatt MB12U is made for motorcycles, scooters and quads. It is worth keeping the MB12U on a maintenance charger if the bike is laid up over winter.
At 15 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The MB12U belongs to the Motobatt MOTOBATT QUADFLEX range. [More Motobatt batteries](https://bateriasonline.es/en/motobatt-batteries)

## Motobatt MB12U codes and part numbers

Shops, garages and catalogues identify the MB12U with these codes:

| Commercial reference | MB12U |
|---|---|
| Not to be confused with | Motobatt MB10U (14.5 Ah, 175 A), Motobatt MB16U (20 Ah, 240 A), Motobatt MB18U (22.5 Ah, 280 A) |

## Equivalents and alternatives to the Motobatt MB12U

No other reference in the catalogue fully matches the dimensions and polarity of the MB12U; you will find the closest ones among our [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries).

## Motobatt MB12U vs MBTX14AU and MB10U

What sets the MB12U apart from its neighbours in the Motobatt range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Motobatt MB12U (this one) | 15 Ah | 160 A | 135 × 80 × 161 | 4.4 kg |
| Motobatt MBTX14AU | 16.5 Ah | 210 A | 135 × 90 × 168 | 5.4 kg |
| Motobatt MB10U | 14.5 Ah | 175 A | 135 × 90 × 146 | 4.3 kg |

- Motobatt MBTX14AU: 1.5 Ah more, 50 A more cranking power, a different case (135 × 90 × 168 mm).
- Motobatt MB10U: 0.5 Ah less, 15 A more cranking power, a different case (135 × 90 × 146 mm).

## What to look at before buying the MB12U

- The MB12U delivers 160 A cold cranking (EN standard); do not go below what your original battery states.
- Capacity of the MB12U: 15 Ah; the same as your current battery or slightly more is fine.
- The MB12U needs 135 × 80 × 161 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Motobatt MB12U

### Motobatt MB12U or MBTX14AU?

Compared with the MB12U, the Motobatt MBTX14AU has 1.5 Ah more and 50 A more cranking power. If your current battery says 210 A or more, choose the MBTX14AU; if it says 160 A or less, the MB12U is enough. Mind the space: the MBTX14AU measures 135 × 90 × 168 mm.

### How much does the Motobatt MB12U weigh?

The MB12U weighs 4.4 kg. For reference, the Motobatt MBTX14AU (16.5 Ah) weighs 5.4 kg.

### Which charger does the Motobatt MB12U need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## Inside the MB12U: AGM technology

Inside, the MB12U has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Other options if you are unsure about the MB12U

- [All motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [More Motobatt models](https://bateriasonline.es/en/motobatt-batteries)

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