Exide ET550 · Marine battery 12V 80Ah 600A
Specifications
| Brand | EXIDE |
|---|---|
| Part number | ET550 |
| Voltage (V) | 12 |
| Capacity (C20) | 80Ah (c20) |
| Technology | Lead-acid |
| Length | 278.00 cm |
| Width | 175.00 cm |
| Height | 190.00 cm |
| Weight | 20.70 Kgs |
€179.60
VAT included
Exide ET550 12V 80Ah 600A is a marine battery with reinforced anti-vibration case for moorings and offshore use. Tolerates the typical daily cycles on a boat (engine start + night-time services such as lights, sonar, fridge) and holds voltage even when the hull is rolling in open sea.
Why this marine battery?
- Marine designbuilt for boat swell and vibration
- Dual functionstarts the engine and powers onboard services
- Sealed and safemaintenance-free even when the boat rolls
Voltage
12 V
Capacity
80 Ah
Cold cranking
600 A
Dimensions
278×175×190 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
20,7 kg
Model
EXIDE MARINA DUAL ET
Marine battery Exide ET550 Marina Dual Et 80Ah 600A 12V
12VVoltage
80AhCapacity
600ACold cranking
20.70kgWeight
With 80 Ah at 12 V and 600 A of cold cranking current (EN), the Exide ET550 from the Marina Dual Et range is built for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 278 × 175 × 190 mm format: same 80 Ah capacity and the positive terminal on the right.
- Conventional lead-acid: the most proven and economical technology.
- Reinforced case against vibration and swell.
- Powers onboard services: lights, sounder, GPS, fridge.
- Tolerates the daily cycling of a boat in season.
What the Exide ET550 is for
The Exide ET550 is designed for motor and sailing boats, both for engine starting and onboard services. If it is your starter battery, run the services from a separate battery; if it is a service battery, avoid routinely discharging it beyond 50%. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 20.70 kg, 1 terminals and B13 hold-down.
Size, terminals and hold-down of the Exide ET550
The Exide ET550 is made in the 278 × 175 × 190 mm format and weighs 20.70 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. It uses a B13 hold-down and 1 terminals, the system that anchors and connects it in the vehicle. 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. We guarantee that every Exide arrives new, charged and with the manufacturer's full warranty.
The Exide ET550: Marina Dual Et range and conventional lead-acid technology
The Marina Dual Et is the Exide range the ET550 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
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.
Care and maintenance
Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up.
Official warranty
The Exide ET550 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
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-ET550
Data sheet
- Brand
- EXIDE
- Reference
- ET550
- Model
- EXIDE MARINA DUAL ET
- Voltage (V)
- 12
- Length
- 278.00 cm
- Width
- 175.00 cm
- Height
- 190.00 cm
- Weight
- 20.70 Kgs
- Technology
- Lead-acid
- EAN
- 3661024036344
- Terminal layout
- Positive terminal on the right
- Terminal type
- 1
- Hold-down
- B13
- Cold cranking amps (EN)
- 600A
- Capacity (C20)
- 80Ah (c20)
Specific References
- EAN13
- 3661024036344
- MPN
- ET550
Codes and references Exide ET550
| Brand | Exide · see all batteries Exide |
|---|---|
| Manufacturer range | EXIDE MARINA DUAL ET |
| Manufacturer reference (MPN) | ET550 |
| EAN-13 barcode | 3661024036344 |
| European case size (EN 50342-2) | L3 |
| Dimensions (length × width × height) | 278 × 175 × 190 mm (278x175x190) |
Comparison: Exide ET550 vs equivalents
The Exide ET550 is interchangeable with these equivalent references: LFS74 (Varta), EN750 (Exide), LFD75 (Varta).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Exide
ET550
This battery
|
12V 80Ah 600A | Lead-acid | €179.60 |
Varta
LFS74
|
12V 74Ah 680A | Lead-acid | €126.30 |
Exide
EN750
|
12V 74Ah 680A | Lead-acid | €123.80 |
Varta
LFD75
|
12V 75Ah 650A | Lead-acid | €250.70 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Compatible vehicles
The Exide ET550 fits 4 vehicles. Most searched below:
How to change the battery
Guide to replace a marine battery (cranking or house) in 20-30 minutes. Moisture and vibration in marine environments require reinforced hold-downs and sealed copper terminals.
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 compartment
Usually under the passenger bench, engine room or a dedicated ventilated compartment. Verify the compartment is dry and well ventilated before opening.
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
Marine batteries are heavy (15-50 kg). If it has rope handles, use them; otherwise have a carry strap ready. Secure the new one with metal hold-downs (not plastic) to resist sea-state vibration.
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 circuit + water protection
Apply dielectric grease on terminals to prevent salt-air corrosion. Check the engine charging circuit delivers 13.8-14.4 V at 2,000 rpm.
Frequently asked questions
How do I fit the ET550 model in my boat?
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.
How long does the Exide ET550 battery last?
Expected lifespan of the Exide ET550 is 4 to 6 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 size is this battery?
Dimensions (length × width × height) are 278×175×190 mm — also written as 278x175x190 mm and correspond to the European L3 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.
Will the Exide ET550 battery fit my boat?
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 ET550 fits 4 verified vehicle versions in our database.
What are the equivalents of the ET550 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 boats. See the "Equivalents" section to view recommended options at the same performance level.
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