Exide EZ850 · Marine battery 12V 100Ah 900A EFB
Specifications
| Brand | EXIDE |
|---|---|
| Part number | EZ850 |
| Voltage (V) | 12 |
| Capacity (C20) | 100Ah (c20) |
| Cold cranking amps (EN) | 900A |
| Technology | EFB |
| Length | 353.00 mm |
| Width | 175.00 mm |
| Height | 190.00 mm |
€146.20
VAT included
Exide EZ850 12V 100Ah 900A 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
900 A
Dimensions
353×175×190 mm
Technology
EFB
Polarity
Positive on the right
Weight
25,5 kg
Model
EXIDE Marina & Leisure Dual EFB
Marine battery Exide EZ850 Dual EFB 100Ah 900A 12V
12VVoltage
100AhCapacity
900ACold cranking
25.50kgWeight
With 100 Ah at 12 V and 900 A of cold cranking current (EN), the Exide EZ850 from the Dual EFB range is built for motor and sailing boats, both for engine starting and onboard services. Measuring 353 × 175 × 190 mm and the positive terminal on the right, it is the direct replacement for boats fitted from the factory with a 100 Ah battery of this format.
- Sealed: no spills or gases in the locker.
- Resistant to humidity and salt air.
- EFB: the evolution of the conventional battery for basic Start-Stop cars.
- Ready for starting outboard and inboard engines.
What the Exide EZ850 is for
On board, the Exide EZ850 provides 100 Ah with a case reinforced against vibration and swell. Keep the terminals clean and protected from salt humidity. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 25.50 kg, EN taper post terminals and B13 hold-down.
Size, terminals and hold-down of the Exide EZ850
In terms of format, the Exide EZ850 measures 353 × 175 × 190 mm (length × width × height) and weighs 25.50 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 EN taper post terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.
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 EZ850: Dual EFB range and EFB technology
The EZ850 is part of the Exide Dual 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.
EFB combines the robustness of the flooded battery with improved plates and separators. The result is a clearly longer service life in vehicles that start and stop constantly.
How to make it last longer
As a service battery, avoid routine discharges below 50% to extend its cycle life. Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections.
Manufacturer's warranty
The Exide EZ850 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Shipping, delivery and returns
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
BCOM-EXIDE-EZ850
Data sheet
- Brand
- EXIDE
- Reference
- EZ850
- Model
- EXIDE Dual EFB
- Voltage (V)
- 12
- Length
- 353.00 mm
- Width
- 175.00 mm
- Height
- 190.00 mm
- Weight
- 25.50 Kgs
- Technology
- EFB
- EAN
- 3661024037495
- Terminal layout
- Positive terminal on the right
- Terminal type
- EN taper post
- Hold-down
- B13
- Cold cranking amps (EN)
- 900A
- Capacity (C20)
- 100Ah (c20)
- Case type
- L05
- Energy (Wh)
- 850
Specific References
- EAN13
- 3661024037495
- MPN
- EZ850
Codes and references Exide EZ850
| Brand | Exide · see all Exide batteries |
|---|---|
| Manufacturer range | EXIDE Dual EFB |
| Manufacturer part number (MPN) | EZ850 |
| EAN-13 barcode | 3661024037495 |
| European case size (EN 50342-2) | L5 |
| Dimensions (length × width × height) | 353 × 175 × 190 mm (353x175x190) |
Comparison: Exide EZ850 vs equivalents
The Exide EZ850 is interchangeable with these equivalent references: ET650 (Exide), LED95 (Varta), LFD90 (Varta).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Exide
EZ850
This battery
|
12V 100Ah 900A | EFB | €146.20 |
Exide
ET650
|
12V 100Ah 800A | Lead-acid | €156.20 |
Varta
LED95
|
12V 95Ah 850A | EFB | €163.70 |
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
Is the EZ850 model EFB? Which boats need it?
Yes. The EZ850 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 boats with basic Start-Stop (no regenerative braking). More affordable than an equivalent AGM, lifespan 4-6 years.
How do I fit the EZ850 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 EZ850 battery last?
Expected lifespan of the Exide EZ850 is 4 to 6 years in basic Start-Stop boat 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 are the measurements of the EZ850 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 EZ850 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 EZ850 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Exide EZ850?
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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