# Marine battery Fullriver DC90-12 12V 90Ah 530A AGM ![Marine battery Fullriver DC90-12 12V 90Ah 530A AGM](https://baterias.com/115-home_default/battery-agm-fullriver-dc90-12-12v-90ah.jpg) > Fullriver DC90-12 marine battery 12V 90Ah 530A AGM. DC Series range. Dimensions 307×169×215 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-dc90-12-12v-90ah - **Language**: en-GB - **Brand**: FULLRIVER - **Reference**: BCOM-FULLRIVER-DC90-12 - **MPN**: DC90-12 - **Price**: 333,80 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULLRIVER | | Reference | DC90-12 | | Model | FULLRIVER DC | | Voltage (V) | 12 V | | Largo | 307 mm | | Ancho | 169 mm | | Alto | 215 mm | | Peso | 28.7 kg | | Tecnología | AGM | | Terminal type | M6 | | Cold cranking amps (EN) | 530 | | Capacity (C20) | 90 Ah (c20) | | Capacity (C5) | 74 Ah (c5) | ## Quick description **Fullriver DC90-12 12V 90Ah 530A** 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 90 Ah C20 🔋 Cold cranking 530 A EN-1 📏 Dimensions 307×169×215 mm ⚙️ Technology AGM ⚖️ Weight 29,2 kg 🏷️ Model DC Series ## Description ## Marine battery Fullriver DC90-12 DC 90Ah 530A 12V 12*V* Voltage 90*Ah* Capacity 530*A* Cold cranking 28.70*kg* Weight The **Fullriver DC90-12** with AGM technology is a marine battery with **90 Ah** and **530 A** of cold cranking current (EN) for motor and sailing boats, both for engine starting and onboard services. Its 307 × 169 × 215 mm make it the exact replacement for the 90 Ah battery fitted as standard to many boats. - Resistant to humidity and salt air. - Sealed: no spills or gases in the locker. - Ready for starting outboard and inboard engines. - AGM: faster recharging and better cycle resistance than a conventional battery. ### What the Fullriver DC90-12 is for With 90 Ah, the Fullriver DC90-12 covers motor and sailing boats, both for engine starting and onboard services. At the end of the season, charge it fully before winter storage. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 28.70 kg and M6 terminals. ### Dimensions, polarity and mounting In terms of format, the Fullriver DC90-12 measures 307 × 169 × 215 mm (length × width × height) and weighs 28.70 kg. It uses M6 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. ### The Fullriver DC90-12: DC range and AGM technology Within the Fullriver catalogue, the **DC** series groups the references designed for this use. The DC90-12 is the 90 Ah model of that family, with the same performance as its siblings in other sizes. In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery. ### Fullriver: the maker behind the DC90-12 Fullriver specialises in deep-cycle AGM batteries for mobility, marine, solar and traction. Its DC and HC series are known for their tolerance to deep discharge and long cycle life. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### Manufacturer's warranty The Fullriver DC90-12 comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered. ### How to make it last longer Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. As a service battery, avoid routine discharges below 50% to extend its cycle life. ### Delivery times and returns Order **before 6:00 pm** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **14 days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### Is the Fullriver DC90-12 an AGM battery and what are the benefits of AGM? Yes. The DC90-12 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 are the dimensions of the Fullriver DC90-12 battery? Dimensions (length × width × height) are 307×169×215 mm — also written as 307x169x215 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. ### Fullriver DC90-12 or Fullriver DCG88-12: which one to choose? Same case and same technology as the DC90-12: an alternative by size, not an official equivalent. Compared with the DC90-12 it has 2 Ah less and 530 A of cold cranking less. It costs 36,90 € more. If the polarity matches and your equipment had a similar capacity, it works as a replacement; if in doubt, ask us with your model. ## 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 · 2026-11-01*