Exide ET650 · Marine battery 12V 100Ah 800A
Specifications
| Brand | EXIDE |
|---|---|
| Part number | ET650 |
| Voltage (V) | 12 |
| Capacity (C20) | 100Ah (c20) |
| Technology | Lead-acid |
| Length | 353.00 cm |
| Width | 175.00 cm |
| Height | 190.00 cm |
| Weight | 26.50 Kgs |
€156.20
VAT included
Exide ET650 12V 100Ah 800A 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
100 Ah
Cold cranking
800 A
Dimensions
353×175×190 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
26,5 kg
Model
EXIDE MARINA DUAL ET
Marine battery Exide ET650 Marina Dual Et 100Ah 800A 12V
12VVoltage
100AhCapacity
800ACold cranking
26.50kgWeight
The Exide ET650 with conventional lead-acid technology is a marine battery with 100 Ah and 800 A of cold cranking current (EN) for motor and sailing boats, both for engine starting and onboard services. It measures 353 × 175 × 190 mm and the positive terminal on the right, the format sought by anyone replacing a 100 Ah battery in boats.
- Tolerates the daily cycling of a boat in season.
- Powers onboard services: lights, sounder, GPS, fridge.
- Reinforced case against vibration and swell.
- Conventional lead-acid: the most proven and economical technology.
What the Exide ET650 is for
The Exide ET650 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 26.50 kg, 1 terminals and B13 hold-down.
Dimensions, polarity and mounting
In terms of format, the Exide ET650 measures 353 × 175 × 190 mm (length × width × height) and weighs 26.50 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.
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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
The Exide ET650: Marina Dual Et range and conventional lead-acid technology
The Marina Dual Et is the Exide range the ET650 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.
How to make it last longer
As a service battery, avoid routine discharges below 50% to extend its cycle life. On batteries with filler caps, check the electrolyte level and top up only with distilled water.
Manufacturer's warranty
The Exide ET650 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
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-EXIDE-ET650
Data sheet
- Brand
- EXIDE
- Reference
- ET650
- Model
- EXIDE MARINA DUAL ET
- Voltage (V)
- 12
- Length
- 353.00 cm
- Width
- 175.00 cm
- Height
- 190.00 cm
- Weight
- 26.50 Kgs
- Technology
- Lead-acid
- EAN
- 3661024035927
- Terminal layout
- Positive terminal on the right
- Terminal type
- 1
- Hold-down
- B13
- Cold cranking amps (EN)
- 800A
- Capacity (C20)
- 100Ah (c20)
Specific References
- EAN13
- 3661024035927
- MPN
- ET650
Codes and references Exide ET650
| Brand | Exide · see all batteries Exide |
|---|---|
| Manufacturer range | EXIDE MARINA DUAL ET |
| Manufacturer reference (MPN) | ET650 |
| EAN-13 barcode | 3661024035927 |
| European case size (EN 50342-2) | L5 |
| Dimensions (length × width × height) | 353 × 175 × 190 mm (353x175x190) |
Comparison: Exide ET650 vs equivalents
The Exide ET650 is interchangeable with these equivalent references: LFS95 (Varta), EN800 (Exide), LFD90 (Varta).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Exide
ET650
This battery
|
12V 100Ah 800A | Lead-acid | €156.20 |
Varta
LFS95
|
12V 95Ah 800A | Lead-acid | €184.50 |
Exide
EN800
|
12V 90Ah 720A | Lead-acid | €137.30 |
Varta
LFD90
|
12V 90Ah 800A | Lead-acid | €215.30 |
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 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 change this battery step by step?
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.
What is the service life of the ET650 model?
Expected lifespan of the Exide ET650 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 are the measurements of the ET650 model?
Dimensions (length × width × height) are 353×175×190 mm — also written as 353x175x190 mm and correspond to the European L5 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.
Is the ET650 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 ET650 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Exide ET650?
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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