Fulmen FX1803 · Truck battery 12V 180Ah 1000A EFB
Specifications
| Brand | Fulmen |
|---|---|
| Part number | FX1803 |
| Voltage (V) | 12 |
| Capacity (C20) | 180Ah (c20) |
| Technology | EFB |
| Length | 513 mm |
| Width | 223 mm |
| Height | 223 mm |
| Weight | 46.10 Kgs |
This product is priced on demand to offer you the best available price at all times.
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Fulmen FX1803 12V 180Ah 1000A is a professional battery for heavy commercial vehicles. Withstands constant chassis vibration, supports long cold-engine cranks and keeps auxiliary services running (tachograph, heater, refrigeration, GPS) during driver's mandatory rest stops.
Why this truck battery?
- True Heavy Dutybuilt for intensive professional use
- Long cold-diesel cranksreliable even in extreme cold
- Powers services at idletachograph, heater and lights with engine off
Voltage
12 V
Capacity
180 Ah
Cold cranking
1000 A
Dimensions
513×223×223 mm
Technology
EFB
Polarity
Positive on the left
Weight
46,1 kg
Model
FULMEN EndurancePRO EFB
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Truck battery Fulmen FX1803 EndurancePRO EFB 180Ah 1,000A 12V
12VVoltage
180AhCapacity
1,000ACold cranking
46.10kgWeight
The Fulmen FX1803 with EFB technology delivers 180 Ah at 12 V and 1,000 A of cold cranking current (EN): what trucks, buses, tractors and heavy machinery demand. It replaces the original battery without adaptation in trucks with a 513 × 223 × 223 mm format: same 180 Ah capacity and the positive terminal on the left.
- EFB technology: reinforced electrolyte for many more start cycles.
- Heavy Duty construction for intensive professional use.
- Powerful cold cranking for large-displacement diesel engines.
- Designed for 24 V installations with two batteries in series.
What the Fulmen FX1803 is for
The Fulmen FX1803 is designed for trucks, buses, tractors and heavy machinery. In 24 V installations with two batteries in series, replace both at the same time to avoid imbalance. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 46.10 kg, 1 terminals and B00 hold-down.
Dimensions, polarity and mounting
It has external dimensions of 513 × 223 × 223 mm and weighs 46.10 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. It uses a B00 hold-down and 1 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.
The Fulmen FX1803: EndurancePRO EFB range and EFB technology
The FX1803 is part of the Fulmen EndurancePRO EFB range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
An EFB is a reinforced flooded battery: its plates retain the active material better and tolerate the cycling imposed by a simple Start-Stop system, at a lower cost than an AGM.
What Fulmen does differently
With more than a century of history, Fulmen offers complete ranges for cars, trucks, motorcycles and leisure with the industrial quality of the Exide group. We guarantee that every Fulmen arrives new, charged and with the manufacturer's full warranty.
Official warranty
The Fulmen FX1803 comes with the manufacturer's official warranty against manufacturing defects. An important note for commercial vehicles: most trucks use two batteries connected in series (24 V installation). If you replace only one, the new battery works alongside the old one, which has already lost capacity; that imbalance shortens its life and the manufacturer may treat it as misuse. Always replace both at the same time.
How to make it last longer
In 24 V installations, check periodically that both batteries show the same voltage; an imbalance means one is failing. A charger with an EFB or smart conventional mode is enough; avoid the high-voltage modes intended for AGM.
When you get it and how to return it
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-FULMEN-FX1803
Data sheet
- Brand
- FULMEN
- Reference
- FX1803
- Model
- FULMEN EndurancePRO EFB
- Voltage (V)
- 12
- Length
- 513 mm
- Width
- 223 mm
- Height
- 223 mm
- Weight
- 46.10 Kgs
- Technology
- EFB
- EAN
- 3661024046473
- Terminal layout
- Positive terminal on the left
- Terminal type
- 1
- Hold-down
- B00
- Cold cranking amps (EN)
- 1000A
- Capacity (C20)
- 180Ah (c20)
- Case type
- D05
Specific References
- EAN13
- 3661024046473
- MPN
- FX1803
Codes and references Fulmen FX1803
| Brand | Fulmen |
|---|---|
| Manufacturer range | FULMEN EndurancePRO EFB |
| Manufacturer reference (MPN) | FX1803 |
| EAN-13 barcode | 3661024046473 |
| Dimensions (length × width × height) | 513 × 223 × 223 mm (513x223x223) |
Comparison: Fulmen FX1803 vs equivalents
The Fulmen FX1803 is interchangeable with these equivalent references: TX1803 (Tudor), L2 (Varta), M18 (Varta), EX1803 (Exide), EG1553 (Exide).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Fulmen
FX1803
This battery
|
12V 180Ah 1000A | EFB | |
Tudor
TX1803
|
12V 180Ah 1000A | EFB | €261.95 |
Varta
L2
|
12V 155Ah 900A | Lead-acid | €214.80 |
Varta
M18
|
12V 180Ah 1000A | Lead-acid | €182.20 |
Exide
EX1803
|
12V 180Ah 1000A | EFB | €249.60 |
Exide
EG1553
|
12V 155Ah 900A | Lead-acid | €262.60 |
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
Guide to replace a truck battery in 30-60 minutes. Truck batteries weigh 25-50 kg — we recommend working in pairs and using a carrying strap.
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 (two people)
Loosen the bottom hold-down clamp. Truck batteries weigh 25-50 kg — lift in pairs with gloves and a carrying strap. Forcing the lift alone risks back injury.
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
Is the Fulmen FX1803 an EFB battery? When is EFB used?
Yes. The FX1803 is an EFB (Enhanced Flooded Battery): flooded lead-acid reinforced with plate additives. Withstands more cycles than a conventional but fewer than an AGM. Fitted to trucks with basic Start-Stop (no regenerative braking). More affordable than an equivalent AGM, lifespan 4-6 years.
Is the Fulmen FX1803 battery suitable for Start-Stop?
Yes. As EFB technology it is designed for Start-Stop vehicles. EFB batteries cover basic Start-Stop (no regenerative braking). EFB is recommended for basic Start-Stop; AGM is recommended when regenerative braking is also present, thanks to its higher cycle capability. It works straight out of the box — on most modern vehicles registering the battery via OBD is recommended so the alternator automatically applies the optimal charging profile.
How do I change this battery step by step?
In most trucks 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 trucks 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 FX1803 model?
Expected lifespan of the Fulmen FX1803 is 4 to 6 years in basic Start-Stop truck use. 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 513×223×223 mm — also written as 513x223x223 mm — following the European DIN standard. Always measure the space in your truck before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Will the Fulmen FX1803 battery fit my truck?
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 FX1803 typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the FX1803 model?
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 trucks. See the "Equivalents" section to view recommended options at the same performance level.
What exactly is an EFB battery like the Fulmen FX1803?
An EFB (Enhanced Flooded Battery) is a flooded lead-acid battery reinforced with plate additives (carbon and polyethylene) and thicker grids. It withstands twice the cycles of a conventional battery and handles deep discharges better, but less than an AGM. It is the original fitment on trucks with basic Start-Stop (no regenerative braking): Renault Energy TCe, Peugeot/Citroën PureTech, Fiat MultiAir, Hyundai/Kia ISG, Ford EcoBoost. If your truck came with EFB from the factory, this is the correct battery — upgrading to AGM is optional (marginal improvement). If it came with AGM, EFB may fall short: better fit AGM. The Fulmen FX1803 is original and meets EN 50342-6.
Will my truck recognise the new battery automatically?
On most trucks it is not strictly necessary — the alternator detects the new battery and adapts the charge automatically. It is recommended to register the battery via OBD so that the alternator applies the optimal charging profile from the first minute and extends the battery life as much as possible (especially on brands with sophisticated BMS: BMW, Mercedes, Audi, Volvo, Land Rover). Any workshop with an OBD scanner (~10-15 € labour) does it in 5 minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. If you do not register, the truck will still start correctly — the alternator just takes a few days to adjust the profile. The Fulmen FX1803 ships factory-charged at 80-90% so you can use it straight after fitting.
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