# Motorcycle battery Fulbat B38-6A GEL 6V 13.7Ah 105A GEL

![Motorcycle battery Fulbat B38-6A GEL 6V 13.7Ah 105A GEL](https://baterias.com/6231-home_default/battery-fulbat-b38-6a-gel-6v-13-7ah-105a.jpg)

> Fulbat B38-6A GEL motorcycle battery 6V 13.7Ah 105A GEL. Motorcycle GEL range. Dimensions 119×83×161 mm, + terminal on the right. Verified OEM fitment.

**Category:** [Motorcycle Batteries](https://baterias.com/gb/motorcycle-batteries) → [FULBAT](https://baterias.com/gb/fulbat)

- **Canonical URL**: https://baterias.com/gb/battery-fulbat-b38-6a-gel-6v-13-7ah-105a
- **Language**: en-GB
- **Brand**: FULBAT
- **Reference**: BCOM-FULBAT-B38-6A GEL
- **MPN**: B38-6A GEL
- **Price**: 54,89 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | FULBAT |
| Model | FULBAT Motorcycle GEL |
| Voltage (V) | 6 V |
| Largo | 119 mm |
| Ancho | 83 mm |
| Alto | 161 mm |
| Tecnología | GEL |
| Terminal layout | Positive right |
| Cold cranking amps (EN) | 105 A |
| Capacity (C20) | 13.7 Ah |
| Capacity (C10) | 13 Ah (c10) |

## Quick description

**Fulbat B38-6A GEL 6V 13,7Ah 105A** is a sealed motorcycle battery ready to fit, with the JIS reference your mechanic recognises at a glance. Vibration-resistant, keeps voltage during the winter off-season and cranks first time when you take it out for a ride.

### Why this motorcycle battery?

- **Same JIS reference** as your bike's original — fits first time
- **Sealed and ready to use** no acid handling, no refills
- **Survives winter storage** holds charge through long off-season

🔌 Voltage
6 V

⚡ Capacity
13,7 Ah C20

🔋 Cold cranking
105 A EN-1

📏 Dimensions
119×83×161 mm

⚙️ Technology
GEL

🧭 Polarity
Positive on the right

## Description

## Motorcycle battery Fulbat B38-6A 13.7Ah 105A 6V

6*V* Voltage
13.7*Ah* Capacity
105*A* Cold cranking

The **Fulbat B38-6A** is a motorcycle battery with **13.7 Ah** and **105 A** of cold cranking current (EN), designed for motorcycles, scooters, quads and personal watercraft. It measures 119 × 83 × 161 mm and the positive terminal on the right, the format sought by anyone replacing a 13.7 Ah battery in motorcycles.
- Energetic cranking for high-compression engines.
- Resistant to the vibration typical of two wheels.
- Same JIS code as the original battery: fits first time.
- GEL technology: gelled electrolyte, fully sealed and maintenance-free.

### What the Fulbat B38-6A is for

With 13.7 Ah, the Fulbat B38-6A covers the starting of motorcycles, scooters, quads and personal watercraft. The JIS code on your current battery label is the safest way to confirm equivalence.

### Dimensions, polarity and mounting

It has external dimensions of 119 × 83 × 161 mm. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

### Why choose Fulbat batteries

French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. All the Fulbat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

### Technology inside the Fulbat B38-6A

Within the Fulbat catalogue, the B38-6A is the 13.7 Ah model designed for this application.
A GEL battery is the choice when cycle resistance and safety matter most: no gases, no liquid and thousands of partial discharges in its lifetime.

### How to make it last longer

If the bike spends the winter standing, connect a trickle charger: deep discharge through inactivity is the first cause of premature failure. Avoid repeated cranking attempts on a cold bike for long: if it does not start on the third try, let the battery rest for a minute.

### Official warranty

The Fulbat B38-6A comes with the **manufacturer's official warranty**. The warranty does not cover discharge through prolonged inactivity: if the bike stands for months, use a trickle charger.

### Shipping, delivery and returns

Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

## Frequently asked questions

### How is the Fulbat B38-6A GEL battery installed in the vehicle?

In most motorcycles it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On motorcycles with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How many years does this battery last?

Expected lifespan of the Fulbat B38-6A GEL is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What are the dimensions of the Fulbat B38-6A GEL battery?

Dimensions (length × width × height) are 119×83×161 mm — also written as 119x83x161 mm — following the European DIN standard. Always measure the space in your motorcycle before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Is the B38-6A GEL valid for my vehicle?

Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The B38-6A GEL typically fits a wide range of European vehicles thanks to its standard DIN case format.

### Which batteries are equivalent to the Fulbat B38-6A GEL?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop motorcycles. See the "Equivalents" section to view recommended options at the same performance level.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-09-30*