Exide EV3800/36 · Marine battery 38.4V 100Ah LifePo4 BT
Specifications
| Brand | EXIDE |
|---|---|
| Part number | EV3800S/36 |
| Voltage (V) | 38.4 |
| Capacity (C20) | 100Ah (c20) |
| Technology | LifePo4 BT |
| Length | 520.00 cm |
| Width | 269.00 cm |
| Height | 221.00 cm |
| Weight | 39.00 Kgs |
€4,674.70
VAT included
Exide EV3800/36 38V 100Ah is a LiFePO4 lithium marine battery built as a service bank: it discharges and recharges every day without losing capacity, delivering thousands of cycles and far faster charging than lead-acid. Its built-in BMS protects it against overcharge, over-discharge and short circuit.
Why this lithium marine battery?
- Deep-cycle service bankdaily discharges to 80 % with no capacity loss
- 60 % less weight on boardthe same energy as lead-acid in far less space
- Built-in BMS, maintenance freeprotects against overcharge, over-discharge and short circuit
Voltage
38 V
Capacity
100 Ah
Dimensions
520×269×221 mm
Technology
LifePo4 BT
Polarity
Positive on the right
Weight
39 kg
Model
EXIDE MARINE AND LEISURE LI-Ion
Marine battery Exide EV3800/36 MARINE AND LEISURE LI-Ion 100Ah 38.4V
38.4VVoltage
100AhCapacity
39kgWeight
The Exide EV3800/36 marine battery offers 38.4 V, 100 Ah from the MARINE AND LEISURE LI-Ion range with LiFePO4 lithium technology, designed for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 520 × 269 × 221 mm format: same 100 Ah capacity.
- Powers onboard services: lights, sounder, GPS, fridge.
- Tolerates the daily cycling of a boat in season.
- LiFePO4 lithium: minimal weight and almost zero self-discharge.
- Reinforced case against vibration and swell.
What the Exide EV3800/36 is for
On board, the Exide EV3800/36 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 39 kg.
Dimensions, polarity and mounting
It has external dimensions of 520 × 269 × 221 mm and weighs 39 kg. 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.
The Exide EV3800/36: MARINE AND LEISURE LI-Ion range and LiFePO4 lithium technology
Within the Exide catalogue, the MARINE AND LEISURE LI-Ion series groups the references designed for this use. The EV3800/36 is the 100 Ah model of that family, with the same performance as its siblings in other sizes.
LiFePO4 chemistry is the safest of the lithium batteries: thermally stable, cobalt-free and good for thousands of cycles, protected by its electronic management system.
Exide: the maker behind the EV3800/36
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. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Official warranty
The Exide EV3800/36 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Care and maintenance
As a service battery, avoid routine discharges below 50% to extend its cycle life. Store the battery at 50-70% charge if it will be unused for months.
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 and Canary 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-EV3800/36
Data sheet
- Brand
- EXIDE
- Reference
- EV3800/36
- Model
- EXIDE MARINE AND LEISURE LI-Ion
- Voltage (V)
- 38.4
- Length
- 520.00 cm
- Width
- 269.00 cm
- Height
- 221.00 cm
- Weight
- 39.00 Kgs
- Technology
- LifePo4 BT
- Capacity (C20)
- 100Ah (c20)
- Case type
- H52
- Energy (Wh)
- 3800
Specific References
- EAN13
- 3661024038010
- MPN
- EV3800S/36
Codes and references Exide EV3800S/36
| Brand | Exide · see all Exide batteries |
|---|---|
| Manufacturer range | EXIDE MARINE AND LEISURE LI-Ion |
| Manufacturer part number (MPN) | EV3800S/36 |
| EAN-13 barcode | 3661024038010 |
| Dimensions (length × width × height) | 520 × 269 × 221 mm (520x269x221) |
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 is the Exide EV3800S/36 battery installed in the vehicle?
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 many years does this battery last?
Expected lifespan of the Exide EV3800S/36 is 10 to 15 years, equivalent to 3,000-5,000 cycles at 80% DoD. 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 EV3800S/36 battery?
Dimensions (length × width × height) are 520×269×221 mm — also written as 520x269x221 mm — 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 EV3800S/36 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 EV3800S/36 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Exide EV3800S/36?
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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