# Marine battery Exide EP900 12V 100Ah 800A AGM ![Marine battery Exide EP900 12V 100Ah 800A AGM](https://baterias.com/5694-home_default/battery-exide-ep900-12v-100ah-720a.jpg) > Exide EP900 marine battery 12V 100Ah 800A AGM. MARINA DUAL EP range. Dimensions 330×173×240 mm, + terminal on the left. 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-ep900-12v-100ah-720a - **Language**: en-GB - **Brand**: EXIDE - **Reference**: BCOM-EXIDE-EP900 - **EAN**: 3661024035965 - **MPN**: EP900 - **Price**: 245,95 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | EXIDE | | Reference | EP900 | | Model | EXIDE MARINA DUAL EP | | Voltage (V) | 12 V | | Largo | 330 cm | | Ancho | 173 cm | | Alto | 240 cm | | Peso | 31.2 kg | | Tecnología | AGM | | EAN | 3661024035965 | | Terminal layout | 1+9 | | Terminal type | SAE M 3/8"- 5/16"&stud | | Hold down | B0 | | Cold cranking amps (EN) | 800 A | | Capacity (C20) | 100 Ah (c20) | ## Quick description **Exide EP900 12V 100Ah 800A** is a marine battery, vibration- and deep-discharge resistant, suitable both for outboard engine starting and for onboard auxiliary services (navigation lights, GPS, sonar, fridge). Sealed and maintenance-free. ## 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 100 Ah C20 🔋 Cold cranking 800 A EN-1 📏 Dimensions 330×173×240 mm ⚙️ Technology AGM 🧭 Polarity Positive on the left ⚖️ Weight 31,2 kg 🏷️ Model EXIDE MARINA DUAL EP ## Description ## Marine battery Exide EP900 Marina Dual EP 100Ah 800A 12V 12*V* Voltage 100*Ah* Capacity 800*A* Cold cranking 31.20*kg* Weight The **Exide EP900** with AGM technology is a marine battery with **100 Ah** and **800 A** of cold cranking current (EN) for motor and sailing boats, both for engine starting and onboard services. Its 330 × 173 × 240 mm make it the exact replacement for the 100 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. ### What the Exide EP900 is for The Exide EP900 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 31.20 kg, SAE M 3/8"- 5/16"&stud terminals and B0 hold-down. ### The Exide EP900: Marina Dual EP range and AGM technology The **Marina Dual EP** is the Exide range the EP900 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. 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. ### Will it fit your current battery tray? The Exide EP900 is made in the 330 × 173 × 240 mm format and weighs 31.20 kg. It uses a B0 hold-down and SAE M 3/8"- 5/16"&stud 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. ### Exide: the maker behind the EP900 With more than a century of history, Exide Technologies manufactures automotive, marine, motorcycle and industrial batteries in Europe. Its presence as original equipment on assembly lines vouches for the quality of every reference. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### 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. ### Manufacturer's warranty The Exide EP900 comes with the **manufacturer's official warranty** against manufacturing defects. Deep discharge from winter lay-up without charging is not covered. ### When you get it and how to return it Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships. ## Frequently asked questions ### Is the EP900 model AGM? What does this technology offer? Yes. The EP900 from Exide 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 EP900 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 many years does this battery last? Expected lifespan of the Exide EP900 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 Exide EP900 battery? Dimensions (length × width × height) are 330×173×240 mm — also written as 330x173x240 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 Exide EP900 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 EP900 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Exide EP900? 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 - [EXIDE EM960](https://baterias.com/gb/battery-exide-em960-12v-100ah-850a) ## 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 · 2026-10-23*