# Fullriver FT1100-31ST · Boat battery 12V 110Ah 1,100A

![Fullriver FT1100-31ST · Boat battery 12V 110Ah 1,100A](https://bateriasonline.es/2205-home_default/fullriver-ft1100-31st.jpg)

> Fullriver FT1100-31ST: 110 Ah boat battery, 1,100 A (EN), 330×173×232 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-ft1100-31st
- **Language**: en
- **Brand**: Fullriver
- **Reference**: BOL-FULLRIVER-FT1100-31ST
- **MPN**: FT1100-31ST
- **Price**: 469,81 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fullriver |
| Range | Full Throttle Series |
| Application | Boats |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 110 Ah |
| Cold cranking amps (EN) | 1100 A |
| Length | 330 mm |
| Width | 173 mm |
| Height | 232 mm |
| Weight | 34.1 kg |
| Terminal type | 3/8" Stud |

## Quick description

Fullriver FT1100-31ST: boat battery with 12 V, 110 Ah and 1,100 A cold cranking current, measuring 330 × 173 × 232 mm.

## Description

## Where the Fullriver FT1100-31ST fits

The Fullriver FT1100-31ST is made for marine use. Fit the FT1100-31ST securely on board and away from bilge water.
The FT1100-31ST belongs to the Fullriver Full Throttle Series range. [See all Fullriver batteries](https://bateriasonline.es/en/fullriver-batteries)

## Inside the FT1100-31ST: AGM technology

Inside, the FT1100-31ST has glass fibre separators (AGM) that hold the electrolyte. The FT1100-31ST needs a charger with an AGM mode that does not exceed 14.7 V.

## Fullriver FT1100-31ST vs DCG100-12 and FFD110-12: differences

What sets the FT1100-31ST apart from its neighbours in the Fullriver range:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Fullriver FT1100-31ST (this one) | 110 Ah | 1,100 A | 330 × 173 × 232 | 34.1 kg |
| Fullriver DCG100-12 | 100 Ah | – | 329 × 171 × 227 | 31.7 kg |
| Fullriver FFD110-12 | 110 Ah | 850 A | 328 × 172 × 241 | 30 kg |

- Fullriver DCG100-12: 10 Ah less, a different case (329 × 171 × 227 mm).
- Fullriver FFD110-12: the same capacity, 250 A less cranking power, a different case (328 × 172 × 241 mm).

## Equivalents and alternatives to the Fullriver FT1100-31ST

No other reference in the catalogue fully matches the dimensions and polarity of the FT1100-31ST; you will find the closest ones among our [marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries).

## Fullriver FT1100-31ST codes and part numbers

This is how the Fullriver FT1100-31ST appears on the label and in parts catalogues:

| Commercial reference | FT1100-31ST |
|---|---|
| Terminal type | 3/8" Stud |

## Check this before ordering the Fullriver FT1100-31ST

- The FT1100-31ST delivers 1,100 A cold cranking (EN standard); do not go below what your original battery states.
- Capacity of the FT1100-31ST: 110 Ah; the same as your current battery or slightly more is fine.
- The FT1100-31ST needs 330 × 173 × 232 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Fullriver FT1100-31ST

### Fullriver FT1100-31ST or DCG100-12?

Compared with the FT1100-31ST, the Fullriver DCG100-12 has 10 Ah less. With 110 Ah, the FT1100-31ST runs longer between charges than the DCG100-12 (100 Ah). Mind the space: the DCG100-12 measures 329 × 171 × 227 mm.

### How much does the Fullriver FT1100-31ST weigh?

The FT1100-31ST weighs 34.1 kg. For reference, the Fullriver DCG100-12 (100 Ah) weighs 31.7 kg.

### How do I look after the boat battery in winter?

Leave it 100% charged, disconnected or on a marine maintenance charger. A battery that spends the winter half-discharged loses capacity permanently.

## More batteries to compare with the FT1100-31ST

- [Other marine and boat batteries](https://bateriasonline.es/en/marine-boat-batteries)
- [Full Fullriver catalogue](https://bateriasonline.es/en/fullriver-batteries)
- [Varta LAD115](https://bateriasonline.es/en/varta-lad115) · 115 Ah, 550 A, 328×172×233.5 mm

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