Robust performance and longevity that surpasses consumer Li-ion batteries.
We supply maintenance-free lead-acid batteries (VRLA) designed for stable operation, high power and long service life. The batteries are designed for demanding applications where high reliability is required, whether for emergency power, technical installations or equipment that requires high discharge capacity.
Our range covers a wide spectrum of sizes and capacities, allowing you to find the right battery for both small and large systems.
Wide range of sizes and capacities
The batteries are available in several variants and cover a capacity range from approximately 17 Ah to 200 Ah (12V). This makes it possible to build everything from compact battery solutions to larger battery banks.
The batteries can also be combined in series and parallel connections to achieve the desired voltage and operating time, for example in 24V or 48V systems.
Designed for high discharge and safe operation
These batteries are designed to deliver high power even under high load (so-called "high rate"). This makes them particularly well suited for applications where the battery must deliver a lot of power in a short time, or where stable performance is critical.
Long design life (depending on use and temperature)
Typical applications
The batteries are often used in:
UPS and emergency power (critical operation during power outages)
Telecom and technical installations
Alarm and security systems
Industrial applications
Maritime installations
Equipment with high power requirements
Frequently Asked Questions
What is a maintenance-free VRLA battery?
VRLA (Valve Regulated Lead Acid) is a sealed, maintenance-free lead battery in which the electrolyte is bound in AGM (Absorbent Glass Mat) separators.
This means that the battery does not need to be refilled with water and can be used in technical installations where stable operation and easy handling are important.
How do I choose the right capacity (Ah) for my system?
The choice of capacity depends on:
Power requirement (W)
Operating time during power failure
System voltage (12V, 24V, 48V)
Ambient temperature
We help you calculate the correct battery size and configuration, whether it's a single 12 V battery or a larger battery bank with series and parallel connections.
What does "high rate" mean and why is it important?
“High rate” means that the battery is designed to deliver high power over shorter periods.
This is particularly important in applications such as UPS and emergency power, where the battery must deliver significant power immediately in the event of a power failure. We advise on the right battery type based on load profile and performance requirements.
How long does a VRLA lead-acid battery last?
The lifespan depends on:
Operating temperature
Charging profile
Depth of discharge (DoD)
Load pattern
When correctly dimensioned and used, batteries can have a long design life. We assist with selection and system setup to ensure optimal operation and service life.
What are these batteries suitable for?
Our VRLA batteries are used in, among other things:
UPS and emergency power systems
Telecom and technical installations
Alarm and security systems
Industrial applications
Maritime installations
Freber helps you choose the right solution based on safety, performance, and operational requirements.
