# Car battery Exide EC905 12V 90Ah 680A ![Car battery Exide EC905 12V 90Ah 680A](https://baterias.com/5507-home_default/battery-exide-ec905-12v-90ah-680a.jpg) > Exide EC905 car battery 12V 90Ah 680A. CLASSIC range. Dimensions 306×173×222 mm, + terminal on the left. Check fitment by plate. **Category:** [Classic Car Batteries](https://baterias.com/gb/batteries-for-classic-cars) → [EXIDE](https://baterias.com/gb/exide) - **Canonical URL**: https://baterias.com/gb/battery-exide-ec905-12v-90ah-680a - **Language**: en-GB - **Brand**: EXIDE - **Reference**: BCOM-EXIDE-EC905 - **EAN**: 3661024034760 - **MPN**: EC905 - **Price**: 103,70 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | EXIDE | | Reference | EC905 | | Model | EXIDE CLASSIC | | Voltage (V) | 12 V | | Largo | 306 cm | | Ancho | 173 cm | | Alto | 222 cm | | Peso | 19.9 kg | | Tecnología | Lead-acid | | EAN | 3661024034760 | | Terminal layout | Positive terminal on the left | | Cold cranking amps (EN) | 680 A | | Capacity (C20) | 90 Ah (c20) | | Case type | D31 | ## Quick description **Exide EC905 12V 90Ah 680A** is a passenger car battery with factory-guaranteed cranking power and extended service life. OEM quality at white-label prices: calcium-silver grids, low self-discharge and compatible with all modern electrical systems. ### Why this car battery? - **Original-equipment quality** without dealership prices - **Lasts 4 to 6 years** buy once instead of twice - **Real human tech support** if you have any doubts before buying 🔌 Voltage 12 V ⚡ Capacity 90 Ah C20 🔋 Cold cranking 680 A EN-1 📏 Dimensions 306×173×222 mm ⚙️ Technology Lead-acid 🧭 Polarity Positive on the left ⚖️ Weight 19,9 kg 🏷️ Model EXIDE CLASSIC ## Description ## Classic car battery Exide EC905 Classic 90Ah 680A 12V 12*V* Voltage 90*Ah* Capacity 680*A* Cold cranking 19.90*kg* Weight The **Exide EC905** from the **Classic** range is rated at **12 V**, **90 Ah** and **680 A** of cold cranking current (EN), a common choice for classic and vintage cars with their original electrical system. Its 306 × 173 × 222 mm and the positive terminal on the left make it the exact replacement for the 90 Ah battery fitted as standard to many classic cars. - Behaves well after long periods without use. - Good balance of capacity, cranking power and price. - Low self-discharge for cars that rarely leave the garage. - Safe starting for carburettor engines and classic ignition. ### What the Exide EC905 is for The Exide EC905 is designed for classic and vintage cars with their original electrical system: a format compatible with period trays and a stable voltage for original ignition and wiring. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 19.90 kg. ### Size, terminals and hold-down of the Exide EC905 It has external dimensions of 306 × 173 × 222 mm and weighs 19.90 kg. The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. 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. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### The Exide EC905: Classic range and conventional lead-acid technology The EC905 is part of the Exide **Classic** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. 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. ### Usage and maintenance tips On batteries with filler caps, check the electrolyte level and top up only with distilled water. Check the resting voltage and terminals periodically; corrosion in old wiring is the most frequent cause of weak starts. ### Manufacturer's warranty The Exide EC905 comes with the **manufacturer's official warranty** against manufacturing defects. The warranty does not cover deep discharge through inactivity: in a classic, a trickle charger is the best protection. ### Delivery times and returns Order **before [[ks:cutoff]]** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **[[ks:return_days]] days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### How do I fit the EC905 model in my car? In most cars 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 cars 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 EC905 model? Expected lifespan of the Exide EC905 is 4 to 6 years in regular car 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 dimensions of the Exide EC905 battery? Dimensions (length × width × height) are 306×173×222 mm — also written as 306x173x222 mm — following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Is the EC905 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 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The EC905 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Exide EC905? 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 cars. See the "Equivalents" section to view recommended options at the same performance level. ## Equivalent batteries - [TUDOR TC905](https://baterias.com/gb/battery-tudor-tc905-12v-90ah-680a) ## Reviews - **Average rating**: 4.81 / 5 (23 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*