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Official Varta distributor · 27 years in Málaga · fitted in ~15 min, no appointment
VARTA Professional Dual Purpose AGM Batteries
The Dual Purpose AGM range performs two functions on board: starts the engine and powers the boat or caravan services.
Technology
AGM technology allows it to deliver the starting current peak and, at the same time, withstand repeated deep discharges without losing capacity. Being sealed, it does not emit gases under normal conditions and can be installed in enclosed spaces or in inclined positions, which is common in boating. It resists vibration and rocking without the electrolyte stratifying.
Applications
- Boats with a single battery for starting and services
- Caravans and campers with mixed installations
- Recreational vehicles with fridge, lighting and inverter
- Installations where there is no space for two batteries
The range in figures
| References | 8 |
|---|---|
| Capacity | 50 – 210 Ah |
| Cold cranking | 540 – 1200 A (EN) |
| Voltage | 12 V |
| Technology | AGM |
How to choose
It is the solution when you cannot or do not want to separate starting and service. If daily consumption is high and prolonged, it is more cost-effective to separate the batteries: one for starting and another for deep cycle performs better than a forced mixed one.
Naming and equivalences
Professional Dual Purpose AGM keeps its name. It is the AGM version of the mixed range: starts the engine and powers the onboard services with a single battery.
Frequently asked questions
What is a dual purpose battery?
A battery that combines two functions: delivers the starting current peak and supports repeated deep discharges to power onboard consumption.
Is a dual purpose battery better than two separate batteries?
Separating the starting bank from the service bank always performs better. The dual purpose is the solution when there is no space or budget for two banks.
Can it be mounted in an enclosed space?
Yes. As it is sealed, it does not emit gases under normal conditions and allows inclined positions, common in boating.
What is the difference with the EFB version?
AGM tolerates deeper and more repeated discharges and better resists vibration. EFB has a more contained price and fits when onboard consumption is moderate.
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