# Motobatt MBT14B4 · Motorcycle battery 12V 13Ah 175A

![Motobatt MBT14B4 · Motorcycle battery 12V 13Ah 175A](https://bateriasonline.es/3208-home_default/motobatt-mbt14b4.jpg)

> Motobatt MBT14B4: 13 Ah motorcycle battery, 175 A (EN), 150×70×145 mm, AGM. Equivalent to Exide ET14B-BS and Varta T14B-BS.

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

- **Canonical URL**: https://bateriasonline.es/en/motobatt-mbt14b4
- **Language**: en
- **Brand**: Motobatt
- **Reference**: BOL-MOTOBATT-MBT14B4
- **MPN**: MBT14B4
- **Price**: 240,05 € (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 | 13 Ah |
| Cold cranking amps (EN) | 175 A |
| Length | 150 mm |
| Width | 70 mm |
| Height | 145 mm |
| Weight | 4.1 kg |
| JIS code | YT14 BBS YT14B4 |

## Quick description

Motobatt MBT14B4: motorcycle battery (AGM) with 12 V, 13 Ah and 175 A cold cranking current, measuring 150 × 70 × 145 mm.

## Description

## Where the Motobatt MBT14B4 fits

The Motobatt MBT14B4 is made for motorcycles, scooters and quads. It is worth keeping the MBT14B4 on a maintenance charger if the bike is laid up over winter.
At 13 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The MBT14B4 belongs to the Motobatt MOTOBATT QUADFLEX range. [More Motobatt batteries](https://bateriasonline.es/en/motobatt-batteries)

## Part numbers and codes for the Motobatt MBT14B4

Shops, garages and catalogues identify the MBT14B4 with these codes:

| Commercial reference | MBT14B4 |
|---|---|
| Not to be confused with | Motobatt MBT12B4 (11 Ah, 150 A) |

## Equivalents and alternatives to the Motobatt MBT14B4

Other AGM batteries that fit the MBT14B4's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide ET14B-BS | AGM | 12 Ah | 190 A | 150 × 70 × 145 |
| Varta T14B-BS | AGM | 12 Ah | 190 A | 152 × 70 × 145 |

## Motobatt MBT14B4 vs MBT12B4 and MBYZ16H

The real differences between the MBT14B4 and the closest Motobatt models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Motobatt MBT14B4 (this one) | 13 Ah | 175 A | 150 × 70 × 145 | 4.1 kg |
| Motobatt MBT12B4 | 11 Ah | 150 A | 150 × 70 × 130 | 3.52 kg |
| Motobatt MBYZ16H | 16.5 Ah | 240 A | 151 × 87 × 145 | 5.05 kg |

- Motobatt MBT12B4: 2 Ah less, 25 A less cranking power, a different case (150 × 70 × 130 mm).
- Motobatt MBYZ16H: 3.5 Ah more, 65 A more cranking power, a different case (151 × 87 × 145 mm).

## What to look at before buying the MBT14B4

- The MBT14B4 delivers 175 A cold cranking (EN standard); do not go below what your original battery states.
- With 13 Ah, the MBT14B4 replaces an original battery of that capacity or slightly less.
- The MBT14B4 needs 150 × 70 × 145 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Motobatt MBT14B4

### MBT14B4 or MBT12B4: which one suits me?

Compared with the MBT14B4, the Motobatt MBT12B4 has 2 Ah less and 25 A less cranking power. The MBT14B4 cranks harder; the MBT12B4 is only a good option if your original battery says 150 A or less. Mind the space: the MBT12B4 measures 150 × 70 × 130 mm.

### How much does the Motobatt MBT14B4 weigh?

4.1 kg, with 13 Ah of capacity. For reference, the Motobatt MBT12B4 (11 Ah) weighs 3.52 kg.

### Which battery is equivalent to the Motobatt MBT14B4?

Only other AGM batteries with its dimensions and polarity: Exide ET14B-BS and Varta T14B-BS. Neither an EFB nor a conventional battery replaces the MBT14B4.

### 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.

## AGM technology in the MBT14B4

Inside, the MBT14B4 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## More batteries to compare with the MBT14B4

- [Other motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Motobatt range](https://bateriasonline.es/en/motobatt-batteries)
- [Exide ET14B-BS](https://bateriasonline.es/en/exide-et14b-bs) · 12 Ah, 190 A, 150×70×145 mm
- [Varta T14B-BS](https://bateriasonline.es/en/varta-t14b-bs-512903019) · 12 Ah, 190 A, 152×70×145 mm

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