# Fullriver DC65-12B · Boat battery 12V 65Ah 490A

![Fullriver DC65-12B · Boat battery 12V 65Ah 490A](https://bateriasonline.es/2588-home_default/fullriver-dc65-12b.jpg)

> Fullriver DC65-12B: 65 Ah boat battery, 490 A (EN), 261×172×187 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-dc65-12b
- **Language**: en
- **Brand**: Fullriver
- **Reference**: BOL-FULLRIVER-DC65-12B
- **MPN**: DC65-12B
- **Price**: 262,54 € (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 | 65 Ah |
| Cold cranking amps (EN) | 490 A |
| Length | 261 mm |
| Width | 172 mm |
| Height | 187 mm |
| Weight | 21.3 kg |
| Terminal type | M8 |

## Quick description

Fullriver DC65-12B: boat battery with 12 V, 65 Ah and 490 A cold cranking current, measuring 261 × 172 × 187 mm.

## Description

## The Fullriver DC65-12B at a glance

The Fullriver DC65-12B is made for marine use. Fit the DC65-12B securely on board and away from bilge water.
The DC65-12B belongs to the Fullriver DC Series range. [More Fullriver batteries](https://bateriasonline.es/en/fullriver-batteries)

## Equivalents and alternatives to the Fullriver DC65-12B

No other reference in the catalogue fully matches the dimensions and polarity of the DC65-12B; you will find the closest ones among our [marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries).

## Fullriver DC65-12B vs DC60-12 and FT825-34: which one to choose?

What sets the DC65-12B apart from its neighbours in the Fullriver range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Fullriver DC65-12B (this one) | 65 Ah | 490 A | 261 × 172 × 187 | 21.3 kg |
| Fullriver DC60-12 | 60 Ah | 410 A | 265 × 166 × 188 | 20.7 kg |
| Fullriver FT825-34 | 65 Ah | 825 A | 261 × 172 × 208 | 20.9 kg |

- Fullriver DC60-12: 5 Ah less, 80 A less cranking power, a different case (265 × 166 × 188 mm).
- Fullriver FT825-34: the same capacity, 335 A more cranking power, a different case (261 × 172 × 208 mm).

## Inside the DC65-12B: AGM technology

Inside, the DC65-12B has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Before ordering the DC65-12B, check this

- Length, width and height of the DC65-12B: 261 × 172 × 187 mm.
- Your current battery should say about 65 Ah; a little more is also fine.
- Check the EN amps on your battery: if it says 490 A or less, the DC65-12B covers your engine.

## Fullriver DC65-12B codes and part numbers

Shops, garages and catalogues identify the DC65-12B with these codes:

| Commercial reference | DC65-12B |
|---|---|
| Terminal type | M8 |
| Not to be confused with | Fullriver DC35-12B (35 Ah), Fullriver DC60-12B (60 Ah, 510 A), Fullriver DC65-12 (65 Ah, 430 A) |

## Frequently asked questions about the Fullriver DC65-12B

### Fullriver DC65-12B or DC60-12?

Compared with the DC65-12B, the Fullriver DC60-12 has 5 Ah less and 80 A less cranking power. The DC65-12B cranks harder; the DC60-12 is only a good option if your original battery says 410 A or less. Mind the space: the DC60-12 measures 265 × 166 × 188 mm.

### How much does the Fullriver DC65-12B weigh?

The DC65-12B weighs 21.3 kg. For reference, the Fullriver DC60-12 (60 Ah) weighs 20.7 kg.

### Can the Fullriver DC65-12B 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 DC65-12B

- [Other marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [Full Fullriver catalogue](https://bateriasonline.es/en/fullriver-batteries)

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