What is a VRLA Battery?

A VRLA battery, also known as a Valve Regulated Lead Acid battery, is a type of rechargeable battery commonly used for backup power applications. Unlike traditional flooded batteries, VRLA batteries do not require regular maintenance since they are sealed and do not release gases during normal operation.

What is the Difference Between AGM and VRLA Batteries?

AGM stands for Absorbent Glass Mat, which is a type of VRLA battery. The main difference between AGM and other VRLA batteries is the use of a glass mat separator to hold the electrolyte in place instead of a liquid or gel. AGM batteries are also known for their higher discharge rates, longer lifespan, and ability to withstand vibrations.

Is a VRLA Battery AGM?

Not all VRLA batteries are AGM, but all AGM batteries are VRLA. VRLA is a broad category that encompasses different types of sealed lead-acid batteries, including Gel and AGM batteries.

What is a VRLA Battery Used For?

VRLA batteries are commonly used in applications where backup power is needed, such as computer UPS systems, telecommunications equipment, emergency lighting, and security systems. They are also used in mobility scooters, electric wheelchairs, and other medical equipment.

Are VRLA Batteries Rechargeable?

Yes, VRLA batteries are rechargeable. However, they should only be recharged with a charger that is specifically designed for VRLA batteries to prevent overcharging. Overcharging can damage the battery and reduce its lifespan.


In conclusion, VRLA batteries are a type of sealed lead-acid battery commonly used in backup power applications. AGM batteries are a type of VRLA battery that uses a glass mat separator for higher discharge rates and longer lifespan. VRLA batteries are rechargeable, but should only be charged with a charger specifically designed for VRLA batteries to prevent damage. Understanding the basics of VRLA batteries can help you choose the right battery for your specific application.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.