Sonnenschein A412/50 A lead gel battery 12V 50Ah

The Sonnenschein A412/50 A is an absolutely maintenance-free lead-gel block battery that has been developed for the highest standards of operational safety and an extremely long service life in professional standby applications. As part of the globally proven A400 series with Dryfit® gel technology, this battery offers exceptional reliability. With a nominal voltage of 12V and a capacity of 50 Ah, it is the ideal energy source for fail-safe emergency power supply in security technology, UPS systems and medical technology.

Highlights at a glance

• Superior Dryfit® gel technology: Absolutely maintenance-free for the entire service life, maximum reliability and leak-proof.
• Extreme longevity: Classified as "Long Life" (12 years and longer) according to Eurobat for maximum investment security.
• High cycle stability and deep discharge protection: Offers excellent recovery even after deep discharges.
• Robust construction: Reinforced, impact-resistant case for use in demanding conditions.
• Low self-discharge: High shelf life and always ready for use in an emergency.

Maximum supply security for critical infrastructure

The Sonnenschein A412/50 A is the specialist for standby parallel operation (standby use), where immediate and reliable power supply in the event of a mains failure is crucial. Its main areas of application are uninterruptible power supplies (UPS) for computer and server systems, emergency and safety lighting systems, fire detection and alarm systems, as well as power supply in hospitals and telecommunications systems.

Proven Dryfit® gel technology

The Dryfit® gel technology invented and perfected by Sonnenschein binds the electrolyte in a thixotropic silica gel. This not only makes the battery absolutely leak-proof and maintenance-free, but also ensures excellent cycle stability and very low self-discharge. The internal gas recombination protects against capacity loss and makes operation particularly safe and efficient without the need to add water.

Developed for longevity and reliability

The A400 series has been developed for maximum cost-effectiveness throughout its life cycle. The extremely long service life of 12 years or more significantly reduces the need for expensive and complex battery replacements in fixed installations. The high manufacturing quality and use of high-purity materials ensure consistent performance, thus contributing to the high operational reliability of the entire system.
 

Features

FAQs about the Sonnenschein A412/50 A lead-gel battery

What is the main advantage of Dryfit® gel technology?

The key advantage is the combination of absolute maintenance-free operation, maximum cycle stability and extreme longevity. Compared to AGM batteries, gel batteries are often even more robust against deep discharges and provide very consistent performance over a long period of time, making them a premium solution for critical standby applications.

What does the classification "Eurobat Long Life" mean?

Eurobat is the association of European battery manufacturers. The "Long Life" classification means that this battery is designed for an expected service life of 12 years or more under defined standby conditions (mostly 20°C ambient temperature and correct maintenance charging).

What is the difference between a standby battery and a starter or solar battery?

A standby battery like this one is optimised for standby parallel operation. It is permanently kept at a constant voltage (maintenance charge) and rarely has to deliver energy. A starter battery is designed for short-term, high currents. A solar battery (cycle battery) is optimised for daily deep discharge and recharge.

How should this lead battery be disposed of?

Lead batteries contain environmentally harmful substances and must not be disposed of in household waste. You can return your old battery free of charge to any dealer who sells new batteries, or to municipal recycling centres, to ensure proper recycling.