# Marine battery Exide ET650 12V 100Ah ![Marine battery Exide ET650 12V 100Ah](https://baterias.com/1751-home_default/battery-exide-et650-12v-100ah-800a.jpg) > Exide ET650 marine battery 12V 100Ah. Vibration resistant, deep-discharge capable; cranking and house duties. 24 h delivery. **Category:** [Boat Batteries](https://baterias.com/gb/boat-batteries) → [EXIDE](https://baterias.com/gb/exide) - **Canonical URL**: https://baterias.com/gb/battery-exide-et650-12v-100ah-800a - **Language**: en-GB - **Brand**: EXIDE - **Reference**: BCOM-EXIDE-ET650 - **EAN**: 3661024035927 - **MPN**: ET650 - **Price**: 155,56 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | EXIDE | | Reference | ET650 | | Model | EXIDE MARINA DUAL ET | | Voltaje | 12 V | | Largo | 353 cm | | Ancho | 175 cm | | Alto | 190 cm | | Peso | 26.5 kg | | Tecnología | PLOMO/ACIDO | | EAN | 3661024035927 | | Scheme | 0 | | Terminal | 1 | | Subjection | B13 | | Arranque en frío CCA EN | 800 A | | Capacidad C20 (Ah) | 100 Ah (c20) | ## Quick description **Exide ET650 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 i 12 V ⚡ Capacity i 100 Ah C20 🔋 Cold cranking i 800 A EN-1 📏 Dimensions i 353×175×190 mm ⚙️ Technology i Lead-Acid 🧭 Polarity i Positive On The Right ⚖️ Weight i 27 kg 🏷️ Model i Exide Marina Dual Et ## Description ## Battery Exide ET650 100Ah 800A 12V The Battery EXIDE ET650 100Ah 800A 650Wh 12V MARINA DUAL ET belongs to the Exide Equipment Batteries range This range of batteries is designed for ships and caravans with dedicated battery banks for navigation, emergencies, safety and comfort with good recharge procedure, which provides reliable benefits and excellent useful life Exide Equipment batteries covers all your equipment supply needs, from small electronics to emergency energy. ### Ideal for: - Boats - Caravans - Cover all equipment supply needs, from electronics to emergency energy ### Battery advantages and characteristics EXIDE ET650 100Ah 800A 650Wh 12V - Low gas emissions - Low maintenance - Vibrations resistant - Allows a slight inclination ### How to find the right battery for your vehicle? In recent years, there has been an increase of almost 300% in the energy needs of vehicles.To select the appropriate battery, it is essential to select the most appropriate battery technology to use needs.Or if it requires a battery for motor start (START), for double (dual) feeding or for equipment feed (equipment). The wide range of exide batteries offers a complete and varied catalog to meet the electrical demands of any vehicle or device. From small and simple gasoline engines to large and robust industrial engines, exide batteries guarantee a reliable and safe start. If you do not find the battery you need or have doubts about which battery, do not hesitate to contact us. ### Why choose an exide battery? Exide is a global leading brand in the manufacture and marketing of batteries, with the "manufactured in Europe" seal represents the latest technology and the most demanding quality standard, both for the replacement market and for the first team. ### Know more about the exide brand Exide manufactures high performance batteries for all types of vehicles and machinery.Their batteries are designed to cover and respond to the maximum demands for all types of applications. They use more advanced components and materials being recognized for their viability and durability because it is one of the world's largest producers and recycling of the world's lead-acid batteries. The main vehicle manufacturers trust exide as a provider of first equipment as the company develops and manufactures state -of -the -art solutions for both energy storage, industrial applications and automocyon applications. ## Frequently asked questions ### How do I verify this battery is the right one? Three ways: 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 for the ET650; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET). ### How do I change this battery step by step? 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 warranty does the Exide ET650 battery have? This battery includes 2 years of official manufacturer warranty against manufacturing defects. Coverage includes cell breakdowns, internal short-circuits and abnormal capacity decreases. Wear from misuse (prolonged overcharging, wrong charger or faulty alternator) is not covered. Once the defect is verified by technical inspection, we replace the ET650 at no cost. ### When will I receive the ET650 model? In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships. ### Can I return the Exide ET650 battery if it doesn't fit or doesn't work? Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period. ### How much does the Exide ET650 battery cost? The current price at baterias.com is 128,56 € (VAT not included), updated every 24 hours. The applicable VAT is calculated in the cart and depends on the destination country of the shipment. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). ### Where do I find the ET650 model online? At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point. ### What is the service life of the ET650 model? Expected lifespan of the Exide ET650 is 3 to 5 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 are the measurements of the ET650 model? Dimensions (length × width × height) are 353×175×190 mm — also written as 353x175x190 mm and correspond to the European L5 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 is the weight of the ET650 model? It weighs 26,5 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre). ### How many amps does the Exide ET650 battery have? Nominal capacity 100 Ah[?cca: and [cold-cranking amps 800 A]] at 12 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer. ### Is the ET650 valid for my vehicle? 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 9:00–18:00 CET). The ET650 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Exide ET650? 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. ### Which is better: Exide ET650 or an alternative from another brand? This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Stryten Energy) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section. ### What reviews does the ET650 model have? The average rating of the Exide ET650 on baterias.com is 4.8/5 from 28 verified customer reviews. The product rating, when available, is shown above and in the "Reviews" section. You can also check our public Trustpilot profile at shop level (4.4/5 from 10,541+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped boats that need OBD registration after fitting. ## Equivalent batteries - [EXIDE EZ850](https://baterias.com/gb/battery-exide-ez850-12v-100ah-850wh-900a) ## 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 · 2026-07-07*