# Marine battery Exide ET550 12V 80Ah 600A ![Marine battery Exide ET550 12V 80Ah 600A](https://baterias.com/1750-home_default/battery-exide-et550-12v-80ah-600a.jpg) > Exide ET550 marine battery 12V 80Ah 600A. MARINA DUAL ET range. Dimensions 278×175×190 mm, + terminal on the right. Cranking and house duties. **Category:** [Boat Batteries](https://baterias.com/gb/boat-batteries) → [EXIDE](https://baterias.com/gb/exide) - **Canonical URL**: https://baterias.com/gb/battery-exide-et550-12v-80ah-600a - **Language**: en-GB - **Brand**: EXIDE - **Reference**: BCOM-EXIDE-ET550 - **EAN**: 3661024036344 - **MPN**: ET550 - **Price**: 179,60 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | EXIDE | | Reference | ET550 | | Model | EXIDE MARINA DUAL ET | | Voltage (V) | 12 V | | Largo | 278 cm | | Ancho | 175 cm | | Alto | 190 cm | | Peso | 20.7 kg | | Tecnología | Lead-acid | | EAN | 3661024036344 | | Terminal layout | Positive terminal on the right | | Terminal type | 1 | | Hold down | B13 | | Cold cranking amps (EN) | 600 A | | Capacity (C20) | 80 Ah (c20) | ## Quick description **Exide ET550 12V 80Ah 600A** 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 80 Ah C20 🔋 Cold cranking 600 A EN-1 📏 Dimensions 278×175×190 mm ⚙️ Technology Lead-acid 🧭 Polarity Positive on the right ⚖️ Weight 20,7 kg 🏷️ Model EXIDE MARINA DUAL ET ## Description ## Marine battery Exide ET550 Marina Dual Et 80Ah 600A 12V 12*V* Voltage 80*Ah* Capacity 600*A* Cold cranking 20.70*kg* Weight With **80 Ah** at **12 V** and **600 A** of cold cranking current (EN), the **Exide ET550** from the **Marina Dual Et** 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 278 × 175 × 190 mm format: same 80 Ah capacity and the positive terminal on the right. - Conventional lead-acid: the most proven and economical technology. - Reinforced case against vibration and swell. - Powers onboard services: lights, sounder, GPS, fridge. - Tolerates the daily cycling of a boat in season. ### What the Exide ET550 is for The Exide ET550 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 20.70 kg, 1 terminals and B13 hold-down. ### Size, terminals and hold-down of the Exide ET550 The Exide ET550 is made in the 278 × 175 × 190 mm format and weighs 20.70 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B13 hold-down and 1 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. ### What Exide does differently Exide is one of the world's largest battery manufacturers and an original-equipment supplier to many car makers. Its European plants produce starter, industrial and leisure batteries under original-equipment quality controls. We guarantee that every Exide arrives new, charged and with the manufacturer's full warranty. ### The Exide ET550: Marina Dual Et range and conventional lead-acid technology The **Marina Dual Et** is the Exide range the ET550 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. Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour. ### Care and maintenance Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up. ### Official warranty The Exide ET550 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 [[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 ### How do I fit the ET550 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 — with positive on the right 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 Exide ET550 battery last? Expected lifespan of the Exide ET550 is 4 to 6 years in regular boat use without 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 278×175×190 mm — also written as 278x175x190 mm and correspond to the European L3 case size — 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. ### What polarity does the Exide ET550 battery have? Polarity: positive on the right. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk. ### Will the Exide ET550 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 ET550 fits 4 verified vehicle versions in our database. ### What are the equivalents of the ET550 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. ## Compatible vehicles This battery fits 4 vehicles. Most searched: - [Tango Yachts PL Tango (1990)](https://baterias.com/gb/boat-batteries/tango-yachts-pl/tango) - [Pronavia Marine AB Pronavia 38 (1990)](https://baterias.com/gb/boat-batteries/pronavia-marine-ab/pronavia-38) - [Malö Yachts AB Malö (1990)](https://baterias.com/gb/boat-batteries/malo-yachts-ab/malo) - [Comfortbätar,Schwed Comfortina (1990)](https://baterias.com/gb/boat-batteries/comfortbatarschwed/comfortina) ## 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*