What's the difference between Dual Purpose and Dual Purpose AGM?

The Dual Purpose is conventional SLI; the AGM version is sealed, handles more discharge cycles and can be mounted at any angle — better if house use is heavier.

Is it compatible with solar panels or onboard chargers?

Yes, it accepts charging from an alternator, mains charger or solar regulator like any conventional lead-acid battery, provided the recommended charge voltage is respected.

How long does a dual purpose battery last in a motorhome?

It depends on discharge cycles: the fewer times it's discharged below 50%, the longer it lasts compared with heavy house use.

Can it crank the engine and run the fridge at the same time?

Yes — that's its job: it combines engine cranking and onboard load duty in one battery, though with fewer cycles than a dedicated deep-cycle AGM or GEL.

VARTA Professional Dual Purpose Batteries

VARTA Professional Dual Purpose batteries: VARTA's dual purpose SLI range that combines starting and house duty in a single battery for boats, motorhomes and caravans. 75-180 Ah, cranking current (CCA) from 600 to 900 A.

The answer when there's no room, weight budget or spare cash for two separate banks: one Varta motorhome battery or marine battery that cranks the engine and also runs the fridge, interior lighting and electronics while the engine is off.

There are 4 products.

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Showing 1-4 of 4 item(s)

VARTA

Marine battery Varta LFD180 12V 180Ah

12V

180Ah

1000A

513 × 223 × 223 mm

4,80(20)

€265.99 VAT incl.

TO BUY

VARTA

Marine battery Varta LFD230 12V 196Ah

12V

230

1150

518 × 276 × 242 mm

4,78(26)

€288.66 VAT incl.

TO BUY

VARTA

Marine battery Varta LFD75 12V 64Ah

12V

650

278 × 175 × 190 mm

4,83(32)

€250.00 VAT incl.

TO BUY

VARTA

Marine battery Varta LFD90 12V 77Ah

12V

800

353 × 175 × 190 mm

4,82(33)

€214.68 VAT incl.

TO BUY

VARTA Professional Dual Purpose: starting and house duty in one battery

The Dual Purpose range packs both jobs that normally need separate banks into a single SLI battery: cranking the engine and keeping onboard loads running (fridge, lights, water pump, electronics) with the engine off. It's the natural choice for compact Varta caravans and motorhomes or boats where doubling up on batteries doesn't pay off.

VARTA Professional Dual Purpose models

LFD75 (75 Ah / 650 A): small caravan or small motorboat.
LFD90 (90 Ah / 800 A): motorhome or mid-size boat.
LFD140 (140 Ah / 800 A): large motorhome or large boat.
LFD180 (180 Ah / 900 A): heavier combined house-plus-starting use.

How to choose your VARTA Professional Dual Purpose

First work out how much onboard load (Ah) you need to cover with the engine off, then check the cranking current (CCA) is enough for your engine. Use our battery comparison tool to compare LFD75, LFD90, LFD140 and LFD180 and pick the one that fits your vehicle or boat.

Frequently asked questions about VARTA Professional Dual Purpose

What's the difference between Dual Purpose and Dual Purpose AGM?: The Dual Purpose is conventional SLI; the AGM version is sealed, handles more discharge cycles and can be mounted at any angle — better if house use is heavier.
Is it compatible with solar panels or onboard chargers?: Yes, it accepts charging from an alternator, mains charger or solar regulator like any conventional lead-acid battery, provided the recommended charge voltage is respected.
How long does a dual purpose battery last in a motorhome?: It depends on discharge cycles: the fewer times it's discharged below 50%, the longer it lasts compared with heavy house use.
Can it crank the engine and run the fridge at the same time?: Yes — that's its job: it combines engine cranking and onboard load duty in one battery, though with fewer cycles than a dedicated deep-cycle AGM or GEL.

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