# Marine battery Fullriver FT1250-4DLT 12V 175Ah 1250A AGM

![Marine battery Fullriver FT1250-4DLT 12V 175Ah 1250A AGM](https://baterias.com/3177-home_default/battery-fullriver-ft1250-4dlt-12v-175ah-1250a.jpg)

> Fullriver FT1250-4DLT marine battery 12V 175Ah 1250A AGM. Full Throttle Series range. Dimensions 513×223×222 mm. Cranking and house duties.

**Category:** [Boat Batteries](https://baterias.com/gb/boat-batteries) → [FULLRIVER](https://baterias.com/gb/fullriver)

- **Canonical URL**: https://baterias.com/gb/battery-fullriver-ft1250-4dlt-12v-175ah-1250a
- **Language**: en-GB
- **Brand**: FULLRIVER
- **Reference**: BCOM-FULLRIVER-FT1250-4DLT
- **MPN**: FT1250-4DLT
- **Price**: 773,40 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | FULLRIVER |
| Reference | FT1250-4 DLT |
| Model | Full Throttle Series |
| Voltage (V) | 12 V |
| Largo | 513 cm |
| Ancho | 223 cm |
| Alto | 222 cm |
| Peso | 56.4 kg |
| Tecnología | AGM |
| Terminal type | M8 + TP28 (SAE) |
| Cold cranking amps (EN) | 1250 |
| Capacity (C20) | 175 |
| Case type | 4 DLT |

## Quick description

**Fullriver FT1250-4DLT 12V 175Ah 1250A** is a marine battery with reinforced anti-vibration case for moorings and offshore use. Tolerates the typical daily cycles on a boat (engine start + night-time services such as lights, sonar, fridge) and holds voltage even when the hull is rolling in open sea.

## Why this marine battery?

- **Marine design** built for boat swell and vibration
- **Dual function** starts the engine and powers onboard services
- **Sealed and safe** maintenance-free even when the boat rolls

🔌 Voltage
12 V

⚡ Capacity
175 Ah C20

🔋 Cold cranking
1250 A EN-1

📏 Dimensions
513×223×222 mm

⚙️ Technology
AGM

⚖️ Weight
56,4 kg

🏷️ Model
Full Throttle Series

## Description

## Marine battery Fullriver FT1250-4DLT Full Throttle Series 175Ah 1,250A 12V

12*V* Voltage
175*Ah* Capacity
1,250*A* Cold cranking
56.40*kg* Weight

The **Fullriver FT1250-4DLT** with AGM technology is a marine battery with **175 Ah** and **1,250 A** of cold cranking current (EN) for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 513 × 223 × 222 mm format: same 175 Ah capacity.
- Powers onboard services: lights, sounder, GPS, fridge.
- Tolerates the daily cycling of a boat in season.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Reinforced case against vibration and swell.

### Dimensions, polarity and mounting

It has external dimensions of 513 × 223 × 222 mm and weighs 56.40 kg. It uses M8 + TP28 (SAE) terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### What the Fullriver FT1250-4DLT is for

On board, the Fullriver FT1250-4DLT provides 175 Ah with a case reinforced against vibration and swell. Keep the terminals clean and protected from salt humidity. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 56.40 kg and M8 + TP28 (SAE) terminals.

### The Fullriver FT1250-4DLT: Full Throttle Series range and AGM technology

Within the Fullriver catalogue, the **Full Throttle Series** series groups the references designed for this use. The FT1250-4DLT is the 175 Ah model of that family, with the same performance as its siblings in other sizes.
AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.

### Fullriver: the maker behind the FT1250-4DLT

With its own plants and a catalogue focused on high-performance AGM, Fullriver is a familiar brand in power wheelchairs, boats and photovoltaic systems that need thousands of cycles. We guarantee that every Fullriver arrives new, charged and with the manufacturer's full warranty.

### Manufacturer's warranty

The Fullriver FT1250-4DLT comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.

### Care and maintenance

At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up. Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections.

### Delivery times and returns

Same-day dispatch from our warehouse for in-stock orders placed **before 6:00 pm**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **14 days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

## Frequently asked questions

### Is the Fullriver FT1250-4DLT an AGM battery and what are the benefits of AGM?

Yes. The FT1250-4DLT from Fullriver uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for boats with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.

### How do I fit the FT1250-4DLT model in my boat?

In most boats it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On boats with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How long does the Fullriver FT1250-4DLT battery last?

Expected lifespan of the Fullriver FT1250-4DLT is 5 to 8 years in mild-climate boat use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What are the measurements of the FT1250-4DLT model?

Dimensions (length × width × height) are 513×223×222 mm — also written as 513x223x222 mm — following the European DIN standard. Always measure the space in your boat before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Will the Fullriver FT1250-4DLT battery fit my boat?

Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The FT1250-4DLT typically fits a wide range of European vehicles thanks to its standard DIN case format.

### What are the equivalents of the FT1250-4DLT model?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop boats. See the "Equivalents" section to view recommended options at the same performance level.


## Equivalent batteries

- [EXIDE EP1500](https://baterias.com/gb/battery-exide-ep1500-12v-180ah-900a)

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-24*