# Marine battery Fullriver DC105-12 12V 105Ah 680A AGM ![Marine battery Fullriver DC105-12 12V 105Ah 680A AGM](https://baterias.com/61-home_default/battery-agm-fullriver-dc105-12-12v-105ah.jpg) > Fullriver DC105-12 marine battery 12V 105Ah 680A AGM. DC Series range. Dimensions 307×169×236 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-dc105-12-12v-105ah - **Language**: en-GB - **Brand**: FULLRIVER - **Reference**: BCOM-FULLRIVER-DC105-12 - **MPN**: DC105-12 - **Price**: 352,50 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULLRIVER | | Reference | DC105-12 | | Model | FULLRIVER DC | | Voltage (V) | 12 V | | Largo | 307 mm | | Ancho | 169 mm | | Alto | 215 mm | | Peso | 30.2 kg | | Tecnología | AGM | | Terminal type | M6 | | Cold cranking amps (EN) | 680 | | Capacity (C20) | 105 Ah (c20) | | Capacity (C5) | 86 Ah (c5) | ## Quick description **Fullriver DC105-12 12V 105Ah 680A** 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 105 Ah C20 🔋 Cold cranking 680 A EN-1 📏 Dimensions 307×169×236 mm ⚙️ Technology AGM ⚖️ Weight 30,2 kg 🏷️ Model DC Series ## Description ## Marine battery Fullriver DC105-12 DC 105Ah 680A 12V 12*V* Voltage 105*Ah* Capacity 680*A* Cold cranking 30.20*kg* Weight The **Fullriver DC105-12 marine battery** offers **12 V**, **105 Ah** and **680 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. Its 307 × 169 × 215 mm make it the exact replacement for the 105 Ah battery fitted as standard to many boats. - Ready for starting outboard and inboard engines. - AGM: faster recharging and better cycle resistance than a conventional battery. - Resistant to humidity and salt air. - Sealed: no spills or gases in the locker. ### Size, terminals and hold-down of the Fullriver DC105-12 In terms of format, the Fullriver DC105-12 measures 307 × 169 × 215 mm (length × width × height) and weighs 30.20 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. ### What the Fullriver DC105-12 is for The Fullriver DC105-12 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 30.20 kg and M6 terminals. ### The Fullriver DC105-12: DC range and AGM technology Within the Fullriver catalogue, the **DC** series groups the references designed for this use. The DC105-12 is the 105 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 DC105-12 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. ### Manufacturer's warranty The Fullriver DC105-12 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. ### Delivery times and returns Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 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 **[[ks:return_days]] 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 DC105-12 model AGM? What does this technology offer? Yes. The DC105-12 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. ### How is the Fullriver DC105-12 battery installed in the vehicle? 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 this page. 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. ### What is the service life of the DC105-12 model? Expected lifespan of the Fullriver DC105-12 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 DC105-12 model? Dimensions (length × width × height) are 307×169×236 mm — also written as 307x169x236 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 DC105-12 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 DC105-12 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Fullriver DC105-12? 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. ## Reviews - **Average rating**: 4.82 / 5 (27 reviews) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-04*