# Marine battery Fullriver DC145-12 12V 145Ah 820A AGM ![Marine battery Fullriver DC145-12 12V 145Ah 820A AGM](https://baterias.com/71-home_default/battery-agm-fullriver-dc145-12-12v-145ah.jpg) > Fullriver DC145-12 marine battery 12V 145Ah 820A AGM. DC Series range. Dimensions 341×173×287 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-dc145-12-12v-145ah - **Language**: en-GB - **Brand**: FULLRIVER - **Reference**: BCOM-FULLRIVER-DC145-12 - **MPN**: DC145-12 - **Price**: 511,90 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULLRIVER | | Reference | DC145-12 | | Model | FULLRIVER DC | | Voltage (V) | 12 V | | Largo | 341 mm | | Ancho | 173 mm | | Alto | 287 mm | | Peso | 44.3 kg | | Tecnología | AGM | | Terminal type | M8 | | Cold cranking amps (EN) | 820 | | Capacity (C20) | 145 Ah (c20) | | Capacity (C5) | 122 Ah (c5) | ## Quick description **Fullriver DC145-12 12V 145Ah 820A** 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 145 Ah C20 🔋 Cold cranking 820 A EN-1 📏 Dimensions 341×173×287 mm ⚙️ Technology AGM ⚖️ Weight 43,8 kg 🏷️ Model DC Series ## Description ## Marine battery Fullriver DC145-12 DC 145Ah 820A 12V 12*V* Voltage 145*Ah* Capacity 820*A* Cold cranking 44.30*kg* Weight The **Fullriver DC145-12 marine battery** offers **12 V**, **145 Ah** and **820 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 replaces the original battery without adaptation in boats with a 341 × 173 × 287 mm format: same 145 Ah capacity. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Reinforced case against vibration and swell. - Powers onboard services: lights, sounder, GPS, fridge. - Tolerates the daily cycling of a boat in season. ### What the Fullriver DC145-12 is for With 145 Ah, the Fullriver DC145-12 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 44.30 kg and M8 terminals. ### Size, terminals and hold-down of the Fullriver DC145-12 In terms of format, the Fullriver DC145-12 measures 341 × 173 × 287 mm (length × width × height) and weighs 44.30 kg. It uses M8 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. ### The Fullriver DC145-12: DC range and AGM technology Within the Fullriver catalogue, the **DC** series groups the references designed for this use. The DC145-12 is the 145 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 DC145-12 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. All the Fullriver batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### Manufacturer's warranty The Fullriver DC145-12 comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered. ### Usage and maintenance tips 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. ### Shipping, delivery 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 DC145-12 model AGM? What does this technology offer? Yes. The DC145-12 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 DC145-12 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 DC145-12 model? Expected lifespan of the Fullriver DC145-12 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 size is this battery? Dimensions (length × width × height) are 341×173×287 mm — also written as 341x173x287 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 DC145-12 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 DC145-12 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the DC145-12 model? 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. ## Equivalent batteries - [FULLRIVER DC140-12](https://baterias.com/gb/battery-agm-fullriver-dc140-12-12v-140ah) ## Reviews - **Average rating**: 4.87 / 5 (14 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 · 2026-10-01*