Fullriver DCG51-12 · Wheelchair battery 51Ah AGM

Marine battery Fullriver DCG51-12 DCG 51Ah 12V

The Fullriver DCG51-12 with AGM technology is a marine battery with 51 Ah for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 229 × 138 × 208 mm format: same 51 Ah capacity.

In short: the Fullriver DCG51-12 (51 Ah, 229 × 138 × 212 mm). Verified equivalent alternatives: Fullriver HC55 and MK Powered M55-12 SLD M.

• 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.

What the Fullriver DCG51-12 is for

On board, the Fullriver DCG51-12 provides 51 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 17.10 kg and M6 terminals.

The Fullriver DCG51-12: DCG range and AGM technology

The DCG51-12 is part of the Fullriver DCG range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.

AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.

Dimensions, polarity and mounting

It has external dimensions of 229 × 138 × 208 mm and weighs 17.10 kg. It uses M6 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

Why choose Fullriver batteries

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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

How to make it last longer

At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

Official warranty

The Fullriver DCG51-12 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.

Shipping, delivery and returns

Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.