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

![Fulbat B38-6A GEL · Motorcycle battery 6V 13.7Ah 105A](https://bateriasonline.es/557-home_default/fulbat-b38-6a-gel.jpg)

> Fulbat B38-6A GEL: 13.7 Ah motorcycle battery, 105 A (EN), 119×83×161 mm, positive terminal on the right, GEL.

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

- **Canonical URL**: https://bateriasonline.es/en/fulbat-b38-6a-gel
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-B38-6A GEL
- **MPN**: B38-6A GEL
- **Price**: 53,79 € (VAT incl., Spain)
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Motorcycle GEL |
| Application | Motorcycles |
| Technology | GEL |
| Voltage | 6 V |
| Capacity | 13.7 Ah |
| Cold cranking amps (EN) | 105 A |
| Length | 119 mm |
| Width | 83 mm |
| Height | 161 mm |
| Weight | 2.35 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Fulbat B38-6A GEL is a motorcycle battery with 6 V, 13.7 Ah and 105 A cold cranking current, measuring 119 × 83 × 161 mm, with the positive terminal on the right.

## Description

## Who the Fulbat B38-6A GEL is for

The Fulbat B38-6A GEL is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. It is worth keeping the B38-6A GEL on a maintenance charger if the bike is laid up over winter.
At 13.7 Ah it goes into large-capacity motorcycles, adventure bikes, customs and quads. The B38-6A GEL belongs to the Fulbat FULBAT Motorcycle GEL range. [More Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat B38-6A GEL

No other reference in the catalogue fully matches the dimensions and polarity of the B38-6A GEL; you will find the closest ones among our [motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries).

## Fulbat B38-6A GEL vs 6N11A-1B/3A GEL: which one to choose?

How the B38-6A GEL compares with Fulbat batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat B38-6A GEL (this one) | 13.7 Ah | 105 A | 119 × 83 × 161 | right | 2.35 kg |
| Fulbat 6N11A-1B/3A GEL | 11.6 Ah | 90 A | 121 × 58 × 130 | right | 1.76 kg |

- Fulbat 6N11A-1B/3A GEL: 2.10 Ah less, 15 A less cranking power, a different case (121 × 58 × 130 mm).

## What to look at before buying the B38-6A GEL

- Length, width and height of the B38-6A GEL: 119 × 83 × 161 mm.
- With the terminals facing you, the positive terminal of the B38-6A GEL is on the right.
- With 13.7 Ah, the B38-6A GEL replaces an original battery of that capacity or slightly less.
- Check the EN amps on your battery: if it says 105 A or less, the B38-6A GEL covers your engine.

## Frequently asked questions about the Fulbat B38-6A GEL

### Fulbat B38-6A GEL or 6N11A-1B/3A GEL?

Compared with the B38-6A GEL, the Fulbat 6N11A-1B/3A GEL has 2.10 Ah less and 15 A less cranking power. The B38-6A GEL cranks harder; the 6N11A-1B/3A GEL is only a good option if your original battery says 90 A or less. Mind the space: the 6N11A-1B/3A GEL measures 121 × 58 × 130 mm.

### How much does the Fulbat B38-6A GEL weigh?

The B38-6A GEL weighs 2.35 kg. For reference, the Fulbat 6N11A-1B/3A GEL (11.6 Ah) weighs 1.76 kg.

### Which side is the positive terminal on the Fulbat B38-6A GEL?

The B38-6A GEL has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

### Does the Fulbat B38-6A GEL come charged and ready to fit?

Sealed AGM and gel batteries leave the factory charged and ready. Conventional ones with a separate acid pack are activated when filled and should be charged before fitting.

## GEL technology in the B38-6A GEL

The B38-6A GEL is a gel battery: the electrolyte is immobilised in silica gel. The B38-6A GEL handles repeated deep discharges well, its strong point compared with an AGM.

## More batteries to compare with the B38-6A GEL

- [More motorcycle batteries](https://bateriasonline.es/en/motorcycle-batteries)
- [The whole Fulbat range](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat B49-6 GEL](https://bateriasonline.es/en/fulbat-b49-6-gel) · 10.5 Ah, 80 A, 91×83×159 mm
- [Fulbat 6N11A-4A GEL](https://bateriasonline.es/en/fulbat-6n11a-4a-gel) · 11.6 Ah, 90 A, 121×58×130 mm

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