# Marine battery Fullriver DC220-6 6V 220Ah 990A AGM ![Marine battery Fullriver DC220-6 6V 220Ah 990A AGM](https://baterias.com/87-home_default/battery-agm-fullriver-dc220-6-6v-220ah.jpg) > Fullriver DC220-6 marine battery 6V 220Ah 990A AGM. DC Series range. Dimensions 306×174×226 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-agm-fullriver-dc220-6-6v-220ah - **Language**: en-GB - **Brand**: FULLRIVER - **Reference**: BCOM-FULLRIVER-DC220-6 - **MPN**: DC220-6 - **Price**: 381,50 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULLRIVER | | Reference | DC220-6 | | Model | FULLRIVER DC | | Voltage (V) | 6 V | | Largo | 306 mm | | Ancho | 174 mm | | Alto | 226 mm | | Peso | 32.7 kg | | Tecnología | AGM | | Terminal type | M8 | | Cold cranking amps (EN) | 990 | | Capacity (C20) | 220 Ah (c20) | | Capacity (C5) | 180 Ah (c5) | ## Quick description **Fullriver DC220-6 6V 220Ah 990A** 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 6 V ⚡ Capacity 220 Ah C20 🔋 Cold cranking 990 A EN-1 📏 Dimensions 306×174×226 mm ⚙️ Technology AGM ⚖️ Weight 32,7 kg 🏷️ Model DC Series ## Description ## Marine battery Fullriver DC220-6 DC 220Ah 990A 6V 6*V* Voltage 220*Ah* Capacity 990*A* Cold cranking 32.70*kg* Weight With **220 Ah** at **6 V** and **990 A** of cold cranking current (EN), the **Fullriver DC220-6** from the **DC** range is built for motor and sailing boats, both for engine starting and onboard services. Measuring 306 × 174 × 226 mm, it is the direct replacement for boats fitted from the factory with a 220 Ah battery of this format. - Sealed: no spills or gases in the locker. - Resistant to humidity and salt air. - AGM: faster recharging and better cycle resistance than a conventional battery. - Ready for starting outboard and inboard engines. ### Will it fit your current battery tray? In terms of format, the Fullriver DC220-6 measures 306 × 174 × 226 mm (length × width × height) and weighs 32.70 kg. It uses M8 terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters. ### What the Fullriver DC220-6 is for The Fullriver DC220-6 is designed for motor and sailing boats, both for engine starting and onboard services. If it is your starter battery, run the services from a separate battery; if it is a service battery, avoid routinely discharging it beyond 50%. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 32.70 kg and M8 terminals. ### The Fullriver DC220-6: DC range and AGM technology Within the Fullriver catalogue, the **DC** series groups the references designed for this use. The DC220-6 is the 220 Ah model of that family, with the same performance as its siblings in other sizes. 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. ### Fullriver: the maker behind the DC220-6 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. All the Fullriver batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### Official warranty The Fullriver DC220-6 comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered. ### Care and maintenance As a service battery, avoid routine discharges below 50% to extend its cycle life. Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. ### When you get it and how to return it 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 DC220-6 model AGM? What does this technology offer? Yes. The DC220-6 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. ### In what position can it be installed on the boat? Being AGM, it is sealed and does not spill: it can be mounted tilted (never upside down) and copes well with vibration and wave impacts. Secure it firmly and keep the terminals away from water. ### What size is this battery? Dimensions (length × width × height) are 306×174×226 mm — also written as 306x174x226 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. ## 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 --- *baterias.com — Automotive batteries · 2026-10-29*