# Marine battery Varta LFS105M 12V 105Ah 800A

![Marine battery Varta LFS105M 12V 105Ah 800A](https://baterias.com/4593-home_default/battery-varta-lfs105m-12v-105ah-800a.jpg)

> Varta LFS105M marine battery 12V 105Ah 800A. Official Varta Distributor. Professional Starter range. Dimensions 330×172×240 mm. Demanding marine cranking.

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

- **Canonical URL**: https://baterias.com/gb/battery-varta-lfs105m-12v-105ah-800a
- **Language**: en-GB
- **Brand**: VARTA
- **Reference**: BCOM-VARTA-LFS105M
- **EAN**: 4016987167168
- **MPN**: LFS105M
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | VARTA |
| Reference | LFS105 M |
| Model | Professional Starter |
| Voltaje | 12 V |
| Largo | 330 mm |
| Ancho | 172 mm |
| Alto | 240 mm |
| Tecnología | PLOMO/ACIDO |
| EAN | 4016987167168 |
| Subjection | B01 |
| Arranque en frío CCA EN | 800 A |
| Capacidad C20 (Ah) | 105 Ah (c20) |
| ETN extra | 931105080K312 |

## Quick description

**Varta LFS105M 12V 105Ah 800A** is a starting battery for boats and motorhomes, with a case reinforced against the vibration of mooring and cruising. All its energy is designed to crank the engine reliably, not to run long loads: for that, fit a separate service bank.

### Why this marine starting battery?

- **Marine design** built for boat swell and vibration
- **Starting in demanding conditions** maximum cranking power
- **Sealed and safe** maintenance-free even when the boat rolls

🔌 Voltage
12 V

⚡ Capacity
105 Ah C20

🔋 Cold cranking
800 A EN-1

📏 Dimensions
330×172×240 mm

⚙️ Technology
Plomo-Ácido

⚖️ Weight
24,67 kg

🏷️ Model
Professional Starter

## Description

## Varta LFS105M Professional Starter 105Ah 800A 12V Battery

12*V* Voltage
105*Ah* Capacity
800*A* Cold cranking

The **Varta LFS105M battery** is the **12 V**, **105 Ah** model delivering **800 A** of cold cranking power (EN), from Varta's **Professional Starter** from Varta, designed for starting marine engines and recreational vehicles in demanding conditions. With dimensions of 330 × 172 × 240 mm, it is the direct replacement for vehicles fitted from the factory with a 105 Ah battery in this format.
- Direct replacement for the original starter battery in boating and leisure use.
- Reliable starting of marine engines and recreational vehicles, in the cold too.
- Rugged construction, resistant to vibration and to the marine environment.
- Optimised for starting in demanding conditions: maximum power at the moment of cranking.

### Applications of the Varta LFS105M battery

The Varta LFS105M covers the needs of starting marine engines and recreational vehicles in demanding conditions with 105 Ah of capacity and a construction built for that use. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a B01 hold-down.

### Format and fitting of the Varta LFS105M

Its outer dimensions are 330 × 172 × 240 mm. It uses a B01 hold-down, the system that anchors it to the vehicle's battery tray. Before replacing it, measure the space your current battery occupies: if it matches on all three dimensions and on terminal position, the swap is direct and needs no adapters.

### The Varta LFS105M and the Professional Starter range

The **Professional Starter** range consists of pure starter batteries for leisure and boating, built to give marine engines and recreational vehicles powerful, reliable starting.
Unlike cycling or dual-purpose batteries, they are optimised for starting rather than for powering equipment over long periods: the choice when all you need is to fire up the engine with confidence.
Their construction prioritises peak current and resistance to the marine environment (vibration, damp and salt) rather than the ability to run equipment for hours: that is what the deep-cycle and dual-purpose ranges are for.

### Why choose a Varta battery

When a workshop recommends Varta, it is not down to marketing: it is one of the brands with the lowest return rates in the sector, with application coverage spanning practically the entire European fleet, from the city car to the commercial vehicle.
Varta combines more than a century of experience with Clarios's industrial production: it is the battery many manufacturers choose as standard and one of the most recommended by workshops. Like any lead-acid battery, it is 100% recyclable.
Varta is Europe's leading manufacturer of starter batteries: its production volume and quality controls guarantee consistent reliability batch after batch, something own-brand labels cannot always promise.

### Manufacturer's warranty

The Varta LFS105M battery comes with **a 1-year official warranty** from the manufacturer.

### Care and maintenance

In leisure applications, avoiding discharges below 50% of capacity multiplies the number of cycles the battery will deliver. A suitable charger and, where possible, a solar regulator keep it healthy through the quieter seasons. To extend its life, recharge it as soon as possible after each discharge and never leave it flat over the winter. A trickle charger is the best investment for getting many cycles out of it.

### Technical sheet

Download the official technical sheet for this battery with all the manufacturer data.
[Download technical sheet (PDF)](/fichastecnicas/ficha-tecnica-bateria-varta-lfs105m-105ah-800a-12v-en.pdf)

## Frequently asked questions

### How do I check that the Varta LFS105M battery fits my vehicle?

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 LFS105M; 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 is the Varta LFS105M 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.

### What warranty does the Varta LFS105M 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. Wear from misuse (prolonged overcharging, wrong charger or faulty alternator) is not covered. If the battery fails, we replace it at no cost after a technical inspection.

### How long does Varta LFS105M 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 Varta LFS105M 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.

### Where do I find the LFS105M 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 long does the Varta LFS105M battery last?

Expected lifespan of the Varta LFS105M is 4 to 7 years in regular use (depends on technology and climate). 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 Varta LFS105M battery?

Dimensions (length × width × height) are 330×172×240 mm — also written as 330x172x240 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 Varta LFS105M battery weigh?

It weighs 24,7 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).

### Does this 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 LFS105M typically fits a wide range of European vehicles thanks to its standard DIN case format.

### What are the equivalents of the LFS105M 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.

### Is this battery a better choice than another equivalent?

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 do users say about the Varta LFS105M battery?

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 11,217+ 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

---
*baterias.com — Automotive batteries · 2026-08-20*