# Marine battery Fullriver FT1100-31 12V 110Ah 1100A AGM ![Marine battery Fullriver FT1100-31 12V 110Ah 1100A AGM](https://baterias.com/3175-home_default/battery-fullriver-ft1100-31-12v-110ah-1100a.jpg) > Fullriver FT1100-31 marine battery 12V 110Ah 1100A AGM. Full Throttle Series range. Dimensions 330×173×237 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-ft1100-31-12v-110ah-1100a - **Language**: en-GB - **Brand**: FULLRIVER - **Reference**: BCOM-FULLRIVER-FT1100-31 - **MPN**: FT1100-31 - **Price**: 486,10 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULLRIVER | | Reference | FT1100-31 | | Model | Full Throttle Series | | Voltage (V) | 12 V | | Largo | 330 cm | | Ancho | 173 cm | | Alto | 237 cm | | Peso | 34.1 kg | | Tecnología | AGM | | EAN | 810233030312 | | Terminal type | M8 + TP28 | | Cold cranking amps (EN) | 1100 | | Capacity (C20) | 110 | | Case type | 31 A | ## Quick description **Fullriver FT1100-31 12V 110Ah 1100A** 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 110 Ah C20 🔋 Cold cranking 1100 A EN-1 📏 Dimensions 330×173×237 mm ⚙️ Technology AGM ⚖️ Weight 34,1 kg 🏷️ Model Full Throttle Series ## Description ## Marine battery Fullriver FT1100-31 Full Throttle Series 110Ah 1,100A 12V 12*V* Voltage 110*Ah* Capacity 1,100*A* Cold cranking 34.10*kg* Weight With **110 Ah** at **12 V** and **1,100 A** of cold cranking current (EN), the **Fullriver FT1100-31** from the **Full Throttle Series** range is built for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 330 × 173 × 237 mm format: same 110 Ah capacity. - Powers onboard services: lights, sounder, GPS, fridge. - Tolerates the daily cycling of a boat in season. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. - Reinforced case against vibration and swell. ### What the Fullriver FT1100-31 is for On board, the Fullriver FT1100-31 provides 110 Ah with a case reinforced against vibration and swell. Keep the terminals clean and protected from salt humidity. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 34.10 kg and M8 + TP28 terminals. ### Dimensions, polarity and mounting It has external dimensions of 330 × 173 × 237 mm and weighs 34.10 kg. It uses M8 + TP28 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. ### Fullriver: the maker behind the FT1100-31 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. ### The Fullriver FT1100-31: Full Throttle Series range and AGM technology The **Full Throttle Series** is the Fullriver range the FT1100-31 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle. AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly. ### 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. ### Official warranty The Fullriver FT1100-31 comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered. ### 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 FT1100-31 model AGM? What does this technology offer? Yes. The FT1100-31 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 do I fit the FT1100-31 model in my boat? 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 our blog. 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. ### How long does the Fullriver FT1100-31 battery last? Expected lifespan of the Fullriver FT1100-31 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 dimensions of the Fullriver FT1100-31 battery? Dimensions (length × width × height) are 330×173×237 mm — also written as 330x173x237 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 FT1100-31 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 FT1100-31 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Fullriver FT1100-31? 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 FFD110-12](https://baterias.com/gb/battery-fullriver-ffd110-12-12v-110ah-850a) - [FULLRIVER DC115-12A](https://baterias.com/gb/battery-agm-fullriver-dc115-12a-12v-115ah) ## 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 · 2026-10-21*