Exide EC904 · Car battery 12V 90Ah 680A
Specifications
| Brand | EXIDE |
|---|---|
| Part number | EC904 |
| Voltage (V) | 12 |
| Capacity (C20) | 90Ah (c20) |
| Technology | Lead-acid |
| Length | 306.00 cm |
| Width | 173.00 cm |
| Height | 222.00 cm |
| Weight | 19.90 Kgs |
€103.70
VAT included
Exide EC904 12V 90Ah 680A is a ready-to-use passenger car battery, sealed and maintenance-free. Delivers the cranking amps the engine needs in cold weather and keeps stable voltage for modern car loads (ECU, sensors, climate control, infotainment).
Why this car battery?
- Original-equipment qualitywithout dealership prices
- Lasts 4 to 6 yearsbuy once instead of twice
- Real human tech supportif you have any doubts before buying
Voltage
12 V
Capacity
90 Ah
Cold cranking
680 A
Dimensions
306×173×222 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
19,9 kg
Model
EXIDE CLASSIC
Classic car battery Exide EC904 Classic 90Ah 680A 12V
12VVoltage
90AhCapacity
680ACold cranking
19.90kgWeight
The Exide EC904 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. It replaces the original battery without adaptation in classic cars with a 306 × 173 × 222 mm format: same 90 Ah capacity and the positive terminal on the right.
- Conventional lead-acid: the most proven and economical technology.
- Respects the vehicle's original electrical system.
- Format and terminals compatible with period battery trays.
- Robust construction against vibration.
What the Exide EC904 is for
With 90 Ah, the Exide EC904 starts classic engines without stressing the rest of the installation. Check size and terminals before ordering. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 19.90 kg.
The Exide EC904: Classic range and conventional lead-acid technology
The EC904 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.
Will it fit your current battery tray?
In terms of format, the Exide EC904 measures 306 × 173 × 222 mm (length × width × height) and weighs 19.90 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. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
Why choose Exide batteries
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. We guarantee that every Exide arrives new, charged and with the manufacturer's full warranty.
How to make it last longer
On batteries with filler caps, check the electrolyte level and top up only with distilled water. A classic car often stands for long spells: a trickle charger connected in the garage is the best investment for the battery.
Official warranty
The Exide EC904 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
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 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 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
BCOM-EXIDE-EC904
Data sheet
- Brand
- EXIDE
- Reference
- EC904
- Model
- EXIDE CLASSIC
- Voltage (V)
- 12
- Length
- 306.00 cm
- Width
- 173.00 cm
- Height
- 222.00 cm
- Weight
- 19.90 Kgs
- Technology
- Lead-acid
- EAN
- 3661024034753
- Terminal layout
- Positive terminal on the right
- Cold cranking amps (EN)
- 680A
- Capacity (C20)
- 90Ah (c20)
- Case type
- D31
Specific References
- EAN13
- 3661024034753
- MPN
- EC904
Codes and references Exide EC904
| Brand | Exide · see all batteries Exide |
|---|---|
| Manufacturer range | EXIDE CLASSIC |
| Manufacturer reference (MPN) | EC904 |
| EAN-13 barcode | 3661024034753 |
| Dimensions (length × width × height) | 306 × 173 × 222 mm (306x173x222) |
Comparison: Exide EC904 vs equivalents
The Exide EC904 is interchangeable with these equivalent references: TC904 (Tudor).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Exide
EC904
This battery
|
12V 90Ah 680A | Lead-acid | €103.70 |
Tudor
TC904
|
12V 90Ah 680A | Lead-acid | €97.80 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
How to change the battery
Step-by-step guide to replace your car battery in 15-30 minutes (longer if the battery is under the seat or in the boot) without losing vehicle settings.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery
Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Loosen the bottom hold-down clamp with the same wrench. Lift the battery carefully (it can weigh 15-25 kg). Clean the tray with a brush and baking soda if there is corrosion.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How do I fit the EC904 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.
How long does the Exide EC904 battery last?
Expected lifespan of the Exide EC904 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 size is this 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.
Will the Exide EC904 battery fit my car?
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 EC904 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Exide EC904?
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.
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