Exide EC905 · Car battery 12V 90Ah 680A
Specifications
| Brand | EXIDE |
|---|---|
| Part number | EC905 |
| Voltage (V) | 12 |
| Capacity (C20) | 90Ah (c20) |
| Cold cranking amps (EN) | 680A |
| Technology | Lead-acid |
| Length | 306.00 cm |
| Width | 173.00 cm |
| Height | 222.00 cm |
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 qualitywithout dealership prices
- Lasts 4 to 6 yearsbuy once instead of twice
- Real human tech supportif you have any doubts before buying

Classic car battery Exide EC905 Classic 90Ah 680A 12V
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.
In short: the Exide EC905 (90 Ah, 680 A, 306 × 173 × 222 mm, positive terminal on the left). Verified equivalent alternatives: Tudor TC905 and Tudor TA955.
- 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 6:00 pm 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 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
Data sheet
-
BrandEXIDE
-
ReferenceEC905
-
ModelEXIDE CLASSIC
-
Voltage (V)12
-
Length306.00 cm
-
Width173.00 cm
-
Height222.00 cm
-
Weight19.90 Kgs
-
TechnologyLead-acid
-
EAN3661024034760
-
Terminal layoutPositive terminal on the left
-
Cold cranking amps (EN)680A
-
Capacity (C20)90Ah (c20)
-
Case typeD31
Specific References
-
EAN133661024034760
-
MPNEC905
Codes and references Exide EC905
| Brand | Exide · see all Exide batteries |
|---|---|
| Manufacturer range | EXIDE CLASSIC |
| Manufacturer part number (MPN) | EC905 |
| EAN-13 barcode | 3661024034760 |
| Dimensions (length × width × height) | 306 × 173 × 222 mm (306x173x222) |
Comparison: Exide EC905 vs equivalents
The Exide EC905 is interchangeable with these equivalent references: TC905 (Tudor), TA955 (Tudor), TB955 (Tudor), EA955 (Exide), EB955 (Exide).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 90Ah 680A | Lead-acid | €103.70 |
|
|
12V 90Ah 680A | Lead-acid | €97.80 |
|
|
12V 95Ah 800A | Lead-acid | €100.70 |
|
|
12V 95Ah 760A | Lead-acid | €78.10 |
|
|
12V 95Ah 800A | Lead-acid | €98.30 |
|
|
12V 95Ah 760A | Lead-acid | €78.10 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Fitting it yourself? Step-by-step guide to replacing the battery →
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 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 left 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.
On which side is the positive of the EC905 model?
Polarity: positive on the left. 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.
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.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.