# Fullriver DC50-12B · Boat battery 12V 50Ah 270A

![Fullriver DC50-12B · Boat battery 12V 50Ah 270A](https://bateriasonline.es/2549-home_default/fullriver-dc50-12b.jpg)

> Fullriver DC50-12B: 50 Ah boat battery, 270 A (EN), 198×166×171 mm, AGM. Compare sizes and equivalents; 14-day returns.

**Category:** [Marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries) → [Fullriver](https://bateriasonline.es/en/fullriver-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fullriver-dc50-12b
- **Language**: en
- **Brand**: Fullriver
- **Reference**: BOL-FULLRIVER-DC50-12B
- **MPN**: DC50-12B
- **Price**: 179,16 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fullriver |
| Range | DC Series |
| Application | Boats |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 50 Ah |
| Cold cranking amps (EN) | 270 A |
| Length | 198 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 14.9 kg |
| Terminal type | M6 |

## Quick description

Fullriver DC50-12B: boat battery with 12 V, 50 Ah and 270 A cold cranking current, measuring 198 × 166 × 171 mm.

## Description

## Where the Fullriver DC50-12B fits

The Fullriver DC50-12B is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. Fit the DC50-12B securely on board and away from bilge water.
The DC50-12B belongs to the Fullriver DC Series range. [More Fullriver batteries](https://bateriasonline.es/en/fullriver-batteries)

## Equivalents and alternatives to the Fullriver DC50-12B

We have no other battery with exactly the dimensions and polarity of the DC50-12B. Browse the rest of our [marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries) to compare close options.

## Fullriver DC50-12B vs DC38-12 and DC40-12

The real differences between the DC50-12B and the closest Fullriver models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Fullriver DC50-12B (this one) | 50 Ah | 270 A | 198 × 166 × 171 | 14.9 kg |
| Fullriver DC38-12 | 38 Ah | 265 A | 198 × 166 × 171 | 13.5 kg |
| Fullriver DC40-12 | 40 Ah | 275 A | 198 × 166 × 174 | 13.4 kg |

- Fullriver DC38-12: 12 Ah less, 5 A less cranking power, the same dimensions.
- Fullriver DC40-12: 10 Ah less, 5 A more cranking power, a different case (198 × 166 × 174 mm).

## What it means that the DC50-12B is AGM

The DC50-12B is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the DC50-12B can be fitted in the boot or under a seat with no risk of spills.

## Check this before ordering the Fullriver DC50-12B

- Measure the space: the DC50-12B takes up 198 × 166 × 171 mm.
- Your current battery should say about 50 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 270 A or less, the DC50-12B covers your engine.

## Part numbers and codes for the Fullriver DC50-12B

Look for any of these DC50-12B codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | DC50-12B |
|---|---|
| Terminal type | M6 |
| Not to be confused with | Fullriver DC50-12 (50 Ah, 440 A), Fullriver DC60-12B (60 Ah, 510 A) |

## Frequently asked questions about the Fullriver DC50-12B

### DC50-12B or DC38-12: which one suits me?

Compared with the DC50-12B, the Fullriver DC38-12 has 12 Ah less and 5 A less cranking power. The DC50-12B cranks harder; the DC38-12 is only a good option if your original battery says 265 A or less. Both measure 198 × 166 × 171 mm, so they fit the same tray.

### How much does the Fullriver DC50-12B weigh?

14.9 kg, with 50 Ah of capacity. For reference, the Fullriver DC38-12 (38 Ah) weighs 13.5 kg.

### Can the Fullriver DC50-12B be used for starting and service at the same time?

Only if it is dual purpose. A starter battery is not built for deep discharge, and a service battery does not deliver the current peak the engine asks for.

## More batteries to compare with the DC50-12B

- [More marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [More Fullriver models](https://bateriasonline.es/en/fullriver-batteries)

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*bateriasonline.es — Batteries and accessories · 2026-11-10*