# Fullriver DC35-12B · Boat battery 12V 35Ah

![Fullriver DC35-12B · Boat battery 12V 35Ah](https://bateriasonline.es/2511-home_default/fullriver-dc35-12b.jpg)

> Fullriver DC35-12B: 35 Ah boat battery, 196×131×180 mm, AGM. VAT included and shipping cost shown before you pay.

**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-dc35-12b
- **Language**: en
- **Brand**: Fullriver
- **Reference**: BOL-FULLRIVER-DC35-12B
- **MPN**: DC35-12B
- **Price**: 137,59 € (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 | 35 Ah |
| Length | 196 mm |
| Width | 131 mm |
| Height | 180 mm |
| Weight | 11.5 kg |
| Terminal type | F25 |

## Quick description

The Fullriver DC35-12B is a boat battery with 12 V and 35 Ah, measuring 196 × 131 × 180 mm.

## Description

## Where the Fullriver DC35-12B fits

The Fullriver DC35-12B is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. Check whether your boat needs starting, service or a dual-purpose battery before choosing.
The DC35-12B belongs to the Fullriver DC Series range. [See all Fullriver batteries](https://bateriasonline.es/en/fullriver-batteries)

## Inside the DC35-12B: AGM technology

The DC35-12B is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the DC35-12B can be fitted in the boot or under a seat with no risk of spills.

## Fullriver DC35-12B vs DC40-12, FT438-U1 and FFD35-12: which one to choose?

Torn between the DC35-12B and another similar Fullriver? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Fullriver DC35-12B (this one) | 35 Ah | 196 × 131 × 180 | 11.5 kg |
| Fullriver DC40-12 | 40 Ah | 198 × 166 × 174 | 13.4 kg |
| Fullriver FT438-U1 | 35 Ah | 196 × 131 × 192 | 11.3 kg |
| Fullriver FFD35-12 | 35 Ah | 196 × 131 × 167 | 9.9 kg |
| Fullriver DC38-12 | 38 Ah | 198 × 166 × 171 | 13.5 kg |

- Fullriver DC40-12: 5 Ah more, a different case (198 × 166 × 174 mm).
- Fullriver FT438-U1: the same capacity, a different height (192 mm instead of 180 mm). It only fits if there is room for 192 mm of height.
- Fullriver FFD35-12: the same capacity, a different height (167 mm instead of 180 mm). It is the option if your battery tray cannot take the 180 mm height of the DC35-12B.
- Fullriver DC38-12: 3 Ah more, a different case (198 × 166 × 171 mm).

## Equivalents and alternatives to the Fullriver DC35-12B

We have no other battery with exactly the dimensions and polarity of the DC35-12B. Browse the rest of our [marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries) to compare close options.

## Part numbers and codes for the Fullriver DC35-12B

Look for any of these DC35-12B codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | DC35-12B |
|---|---|
| Terminal type | F25 |
| Not to be confused with | Fullriver DC35-12 (35 Ah, 190 A), Fullriver DC65-12B (65 Ah, 490 A) |

## What to look at before buying the DC35-12B

- With 35 Ah, the DC35-12B replaces an original battery of that capacity or slightly less.
- Length, width and height of the DC35-12B: 196 × 131 × 180 mm.

## Frequently asked questions about the Fullriver DC35-12B

### DC35-12B or DC40-12: which one suits me?

Compared with the DC35-12B, the Fullriver DC40-12 has 5 Ah more. With 40 Ah, the DC40-12 runs longer between charges than the DC35-12B (35 Ah). Mind the space: the DC40-12 measures 198 × 166 × 174 mm.

### Fullriver DC35-12B or FT438-U1/FFD35-12: what changes?

Mainly the height: the DC35-12B is 180 mm tall and the Fullriver FT438-U1 192 mm, with the same length and width and 35 Ah against 35 Ah. The Fullriver FFD35-12 is 167 mm tall, with 35 Ah and 225 A. Before choosing between the DC35-12B and the FT438-U1, measure the free height of the battery compartment with the cover or bonnet closed.

### How much does the Fullriver DC35-12B weigh?

11.5 kg, with 35 Ah of capacity. For reference, the Fullriver DC40-12 (40 Ah) weighs 13.4 kg.

### Which charger does the Fullriver DC35-12B need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## Keep comparing: alternatives to the DC35-12B

- [Other marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [The whole Fullriver range](https://bateriasonline.es/en/fullriver-batteries)

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