Sonnenschein A512/55 A - 12 V 55 Ah VRLA gel battery

The Sonnenschein A512/55 A is a reliable, maintenance-free lead-gel battery from the A500 series, developed for demanding applications in UPS systems, telecommunications, safety lighting and energy storage. With its dryfit gel technology, it impresses with long service life, high operational reliability and low self-discharge.

Highlights at a glance

• Nominal capacity: 55 Ah (C20, 1.75 V/Z, 20 °C)
• Design service life: 10–12 years (EUROBAT “Long Life”)
• Maintenance-free: No topping up thanks to sealed VRLA gel technology
• Very low gassing due to internal gas recombination
• High corrosion resistance due to lead-calcium grid plates
• Storage life up to 2 years without recharging (at 20 °C)

Powerful in safety-relevant applications

The Sonnenschein A512/55 A is the ideal choice for uninterruptible power supplies, emergency lighting, telecommunications, hazard detection technology and energy systems. With a capacity of 55 Ah, it ensures a stable power supply even during longer backup times.

Efficiency and operational reliability

Thanks to VRLA gel technology, the battery is completely maintenance-free. The internal gas recombination significantly reduces gassing and makes use in sensitive environments particularly safe. Thanks to its low self-discharge, the battery remains storable for a long time without losing performance.

Advanced gel technology

The Sonnenschein A500 series is based on proven dryfit gel technology. The electrolyte is bound in a glass fleece, making the battery deep-discharge safe and robust against cyclic loads. Reinforced lead-calcium grid plates guarantee high corrosion resistance and long service life.
 

Features

FAQs about the Sonnenschein A512/55 A lead battery

For which applications is the A512/55 A suitable?

The battery is ideal for UPS systems, emergency lighting, telecommunications equipment, hazard detection systems and energy storage solutions.

Is the A512/55 A maintenance-free?

Yes, the sealed VRLA gel technology (dryfit) eliminates the need to top up with water.

What service life does the battery offer?

The design service life is 10–12 years according to EUROBAT classification “Long Life”.

Can the battery be transported without restrictions?

Yes, it is not subject to any transport restrictions (IATA, DGR, A67) and can be transported by road, rail, water and air.

What are the advantages of dryfit gel technology?

It provides deep-discharge protection, high cycle stability, low self-discharge and especially long storage capability.

How reliable is the battery in continuous operation or prolonged storage?

Thanks to dryfit technology, it is characterised by excellent cycle performance and very low self-discharge. It remains operational at 20 °C for up to 2 years without recharging.