# Marine battery Fullriver DC26-12B 12V 26Ah 160A AGM ![Marine battery Fullriver DC26-12B 12V 26Ah 160A AGM](https://baterias.com/95-home_default/battery-fullriver-dc26-12b-12v-26ah-165a.jpg) > Fullriver DC26-12B marine battery 12V 26Ah 160A AGM. DC Series range. Dimensions 166×126×174 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-dc26-12b-12v-26ah-165a - **Language**: en-GB - **Brand**: FULLRIVER - **Reference**: BCOM-FULLRIVER-DC26-12B - **MPN**: DC26-12B - **Price**: 131,10 € (VAT incl., Spain) - **Last updated**: 2026-10-28 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULLRIVER | | Reference | DC26-12 B | | Model | FULLRIVER DC | | Voltage (V) | 12 V | | Largo | 165 mm | | Ancho | 176 mm | | Alto | 125 mm | | Peso | 9.4 kg | | Tecnología | AGM | | Terminal type | M6 | | Cold cranking amps (EN) | 160 | | Capacity (C20) | 26 Ah (c20) | | Capacity (C5) | 21 3 Ah (c5) | ## Quick description **Fullriver DC26-12B 12V 26Ah 160A** 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 26 Ah C20 🔋 Cold cranking 160 A EN-1 📏 Dimensions 166×126×174 mm ⚙️ Technology AGM ⚖️ Weight 10,3 kg 🏷️ Model DC Series ## Description ## Marine battery Fullriver DC26-12B DC 26Ah 160A 12V 12*V* Voltage 26*Ah* Capacity 160*A* Cold cranking 9.40*kg* Weight The **Fullriver DC26-12B marine battery** offers **12 V**, **26 Ah** and **160 A** of cold cranking current (EN) from the **DC** range with AGM technology, designed for motor and sailing boats, both for engine starting and onboard services. It measures 165 × 176 × 125 mm, the format sought by anyone replacing a 26 Ah battery in boats. - Tolerates the daily cycling of a boat in season. - Powers onboard services: lights, sounder, GPS, fridge. - Reinforced case against vibration and swell. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. ### What the Fullriver DC26-12B is for The Fullriver DC26-12B 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 9.40 kg and M6 terminals. ### Dimensions, polarity and mounting It has external dimensions of 165 × 176 × 125 mm and weighs 9.40 kg. It uses M6 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. ### 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. We guarantee that every Fullriver arrives new, charged and with the manufacturer's full warranty. ### The Fullriver DC26-12B: DC range and AGM technology Within the Fullriver catalogue, the **DC** series groups the references designed for this use. The DC26-12B is the 26 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. ### Usage and maintenance tips 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. ### Manufacturer's warranty The Fullriver DC26-12B comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered. ### 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 DC26-12B an AGM battery and what are the benefits of AGM? Yes. The Fullriver DC26-12B is AGM (Absorbent Glass Mat): sealed lead-acid, with the electrolyte absorbed in glass fibre. It withstands more cycles than a conventional battery and copes better with heat. ### 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 measurements of the DC26-12B model? It measures 166×126×174 mm in length × width × height, with the terminals included in the height. Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close. ### Fullriver DC26-12B or Fullriver DC26-12A: which one to choose? Sister reference of the DC26-12B, practically identical on paper. Compared with the DC26-12B it has the same Ah and cranking power. It costs 10,40 € less. Choose by price and availability: in real use you will not notice a difference. ## Equivalent batteries - [FULLRIVER DC26-12A](https://baterias.com/gb/battery-fullriver-dc26-12a-12v-26ah) ## 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 · 2026-11-07*