# Marine battery Exide EV640 12.8V 50Ah LifePo4 BT

![Marine battery Exide EV640 12.8V 50Ah LifePo4 BT](https://baterias.com/1907-home_default/battery-exide-ev640-128v-50ah-640wh.jpg)

> Exide EV640 marine battery 12.8V 50Ah LifePo4 BT. MARINE AND LEISURE LI-Ion range. Dimensions 308×168×211 mm, + terminal on the left.

**Category:** [Boat Batteries](https://baterias.com/gb/boat-batteries) → [EXIDE](https://baterias.com/gb/exide)

- **Canonical URL**: https://baterias.com/gb/battery-exide-ev640-128v-50ah-640wh
- **Language**: en-GB
- **Brand**: EXIDE
- **Reference**: BCOM-EXIDE-EV640
- **EAN**: 3661024037976
- **MPN**: EV640S
- **Price**: 929,96 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | EXIDE |
| Reference | EV640 |
| Model | EXIDE MARINE AND LEISURE LI-Ion |
| Voltaje | 12.8 V |
| Largo | 307 cm |
| Ancho | 170 cm |
| Alto | 216 cm |
| Peso | 8.5 kg |
| Tecnología | LifePo4 BT |
| Capacidad C20 (Ah) | 50 Ah (c20) |
| Box Type | D31 |
| Energía (Wh) | 640 Wh |

## Quick description

**Exide EV640 12V 50Ah** is a LiFePO4 lithium service battery for boats, designed to power onboard loads (fridge, fishfinder, GPS, lights, inverter) through deep daily discharges. It is not a starting battery: it replaces the lead-acid service bank at around 60 % less weight.

### Why this lithium marine battery?

- **Deep-cycle service bank** daily discharges to 80 % with no capacity loss
- **60 % less weight on board** the same energy as lead-acid in far less space
- **Built-in BMS, maintenance free** protects against overcharge, over-discharge and short circuit

🔌 Voltage
12 V

⚡ Capacity
50 Ah C20

📏 Dimensions
308×168×211 mm

⚙️ Technology
LifePo4 BT

🧭 Polarity
Positivo a la izquierda

⚖️ Weight
8,5 kg

🏷️ Model
EXIDE MARINE AND LEISURE LI-Ion

## Description

## Battery Exide EV640 50Ah 640Wh 12.8V

The Battery EXIDE EV640 50Ah 640Wh 12.8V MARINE AND LEISURE LI-Ion belongs to the Marine & Leisure of Exide batteries that covers all types of marine applications: engine start, equipment feed and double feeding.

The battery as a key element of its boat provides the electricity supply for essential operations such as motor start, the operation of radio equipment, GPS, navigation lights, heating and cooling, so that you can completely enjoy your crossings.
Exide's Marine & Leisure range offers maximum reliability and optimal electrical performance, which will allow you to extend the duration of your trips, experience luxury and comfort on board and benefit from an exceptional battery life.

### Select the range of batteries that your boat needs

- Identify the energy needs of the boat

- Identifying the electrical configuration of the boat to find the combination of proper batteries

- Selecting battery technology more appropriate to use needs

### How to find the right battery for your vehicle?

In recent years, there has been an increase of almost 300% in the energy needs of vehicles.To select the appropriate battery, it is essential to select the most appropriate battery technology to use needs.Or if it requires a battery for motor start (START), for double (dual) feeding or for equipment feed (equipment).

The wide range of exide batteries offers a complete and varied catalog to meet the electrical demands of any vehicle or device.
From small and simple gasoline engines to large and robust industrial engines, exide batteries guarantee a reliable and safe start.

If you do not find the battery you need or have doubts about which battery, do not hesitate to contact us.

### Why choose an exide battery?

Exide is a global leading brand in the manufacture and marketing of batteries, with the "manufactured in Europe" seal represents the latest technology and the most demanding quality standard, both for the replacement market and for the first team.

### Know more about the exide brand

Exide manufactures high performance batteries for all types of vehicles and machinery.Their batteries are designed to cover and respond to the maximum demands for all types of applications.

They use more advanced components and materials being recognized for their viability and durability because it is one of the world's largest producers and recycling of the world's lead-acid batteries.
The main vehicle manufacturers trust exide as a provider of first equipment as the company develops and manufactures state -of -the -art solutions for both energy storage, industrial applications and automocyon applications.

If you want additional information about Battery Exide EV640, you can download the product's technical sheet at the following link:
[ Download technical sheet Exide EV640 50Ah 640Wh 12.8V](/fichastecnicas/data-sheet-battery-exide-ev640-50ah-640wh-128v-en.pdf)

## Frequently asked questions

### How do I know if the EV640S model fits my boat?

Three ways: 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 for the EV640S; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET).

### How do I fit the EV640S 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.

### What warranty does the Exide EV640S battery have?

This battery includes 1 year of official manufacturer warranty against manufacturing defects. It applies to defects such as damaged cells, internal short-circuits or abnormal capacity loss. It does NOT cover misuse (prolonged overcharging, inadequate charger, defective alternator). If the battery fails, we replace it at no cost after a technical inspection.

### How long does Exide EV640S delivery take?

In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships.

### Can I return the Exide EV640S battery if it doesn't fit or doesn't work?

Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period.

### How much does the Exide EV640S battery cost?

The current price at baterias.com is 929,96 € (VAT included; 768,56 € excl. VAT), updated every 24 hours. The applicable VAT may vary with the destination country and is confirmed in the cart. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery).

### Where do I find the EV640S model online?

At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point.

### How many years does this battery last?

Expected lifespan of the Exide EV640S 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 size is this battery?

Dimensions (length × width × height) are 308×168×211 mm — also written as 308x168x211 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.

### How much does the Exide EV640S battery weigh?

It weighs 9 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre).

### How many amps does the Exide EV640S battery have?

Nominal capacity 50 Ah[?cca: and [cold-cranking amps A]] at 12.8 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer.

### Will the Exide EV640S 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 9:00–18:00 CET). The EV640S typically fits a wide range of European vehicles thanks to its standard DIN case format.

### What are the equivalents of the EV640S 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.

### Which is better: Exide EV640S or an alternative from another brand?

This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Exide Technologies) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section.

### What reviews does the EV640S model have?

The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.5/5 from 11,045+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped boats that need OBD registration after fitting.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-08-09*