# Marine battery Varta LA170 12V 170Ah 1000A AGM

![Marine battery Varta LA170 12V 170Ah 1000A AGM](https://baterias.com/4433-home_default/battery-varta-la170-12v-170ah-1000a.jpg)

> Varta LA170 marine battery 12V 170Ah 1000A AGM. Official Varta Distributor. Professional Dual Purpose AGM range. Cranking and house duties.

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

- **Canonical URL**: https://baterias.com/gb/battery-varta-la170-12v-170ah-1000a
- **Language**: en-GB
- **Brand**: VARTA
- **Reference**: BCOM-VARTA-LA170
- **EAN**: 4016987169810
- **MPN**: LA170
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | VARTA |
| Reference | LA170 |
| Model | Professional Dual Purpose AGM |
| Voltaje | 12 V |
| Largo | 513 mm |
| Ancho | 223 mm |
| Alto | 223 mm |
| Tecnología | AGM |
| EAN | 4016987169810 |
| Subjection | B00 |
| Arranque en frío CCA EN | 1000 A |
| Capacidad C20 (Ah) | 170 Ah (c20) |
| ETN extra | 840170100K312 |

## Quick description

**Varta LA170 12V 170Ah 1000A** 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 design** built for boat swell and vibration
- **Dual function** starts the engine and powers onboard services
- **Sealed and safe** maintenance-free even when the boat rolls

🔌 Voltage
12 V

⚡ Capacity
170 Ah C20

🔋 Cold cranking
1000 A EN-1

📏 Dimensions
513×223×223 mm

⚙️ Technology
AGM

🧭 Polarity
Positivo a la izquierda

⚖️ Weight
47,49 kg

🏷️ Model
Professional Dual Purpose AGM

## Description

## Varta LA170 Professional Dual Purpose AGM 170Ah 1000A 12V Battery

12*V* Voltage
170*Ah* Capacity
1000*A* Cold cranking

The **Varta LA170 battery** is the **12 V**, **170 Ah** model delivering **1000 A** of cold cranking power (EN), from Varta's **Professional Dual Purpose AGM** from Varta, designed for motorhomes, boats and auxiliary power equipment. Its 513 × 223 × 223 mm dimensions make it the exact replacement for the 170 Ah battery fitted as standard on many vehicles.
- Dual cycle: it both starts the engine and powers auxiliary equipment.
- Ideal for motorhomes, boating and leisure power.
- Withstands deep discharges and repeated recharging without degrading.
- More on-board running time than a conventional starter battery.

### Applications of the Varta LA170 battery

The Varta LA170 covers the needs of motorhomes, boats and auxiliary power equipment with 170 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 B00 hold-down.

### Format and fitting of the Varta LA170

In format, the Varta LA170 measures 513 × 223 × 223 mm (length × width × height). It uses a B00 hold-down, the system that anchors it to the vehicle's battery tray. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### The Varta LA170 and the Professional Dual Purpose AGM range

The **Professional Dual Purpose AGM** range combines dual purpose (starting + leisure supply) with AGM technology, which brings greater resistance to cycling, zero maintenance and safety against spillage.
It is the demanding choice for motorhomes and boats that need to start the engine and sustain a heavy equipment load with maximum durability.
Unlike a pure starter battery, this range withstands deep discharges and repeated recharging without degrading: exactly what a motorhome or a boat drawing power with the engine off requires. It therefore combines starting and leisure supply in a single dual-cycle battery.

### Why choose a Varta battery

Choosing Varta means going with the reference the car manufacturer itself signed off in the first place. Against own-brand batteries, the difference is not the purchase price but how many winters the battery lasts before it leaves you stranded.
Behind Varta is Clarios, one of the largest manufacturers of starter batteries in the world and a supplier to the assembly lines of numerous car brands. That German engineering heritage translates into reliable starting year after year.
Varta's production combines automated lines with verification of more than 100 parameters per unit; that traceability is what underpins its reputation for reliable starting throughout the battery's life.

### Manufacturer's warranty

The Varta LA170 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.

## Frequently asked questions

### How do I check that the Varta LA170 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 LA170; 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 LA170 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 Varta LA170 battery have?

The official manufacturer warranty is 1 year and covers manufacturing defects. It covers cell failures, internal short-circuits and abnormal capacity drops. Damage from misuse is excluded: prolonged overcharging, unsuitable chargers or a faulty alternator. On confirmed defect after technical inspection, we replace the LA170 model at no cost.

### How long does Varta LA170 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.

### How do I return the LA170 model if it doesn't fit?

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 can I buy the Varta LA170 battery?

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 Varta LA170 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 measurements of the LA170 model?

Dimensions (length × width × height) are 513×223×223 mm — also written as 513x223x223 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.

### What is the weight of the LA170 model?

It weighs 47,5 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).

### Will the Varta LA170 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 LA170 typically fits a wide range of European vehicles thanks to its standard DIN case format.

### Which batteries are equivalent to the Varta LA170?

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: Varta LA170 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 do users say about the Varta LA170 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 11,202+ 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 · 2026-08-20*