AGM Batteries - What Are They and What Do They Offer

CATEGORY: TECHNOLOGY

The mats placed between the lead plates are highly absorbent, significantly exceeding the volume of fluid in the battery. This solution affects the battery's lifespan, increases the number of cycles, allowing for multiple charging and discharging of cells without loss of device performance parameters. However, glass fiber separators are not the only factor; safe use of AGM technology is possible thanks to the VRLA system, Valve Regulated Lead Acid. This mechanism utilizes a unidirectional valve to release excess pressure inside the battery, preventing its housing from becoming unsealed. It's worth noting that even in case of leaks, glass fiber mats will prevent the electrolyte from leaking outside the battery's insulation. Moreover, these separators influence the positioning of the fluid inside, allowing the device to operate in any position without negatively affecting its performance.

In addition to safety aspects, it's also essential to focus on performance. The use of AGM technology guarantees very low internal resistance, resulting in a shorter reaction time between the electrodes and the electrolyte. High efficiency, along with a small size, enables installation in hard-to-reach places. Additionally, absorbent mats have two additional advantages. They prevent low temperatures from causing the battery housing to become unsealed due to changes in electrolyte volume, and they also increase the battery's tolerance to shocks and vibrations. However, it's essential to remember that prolonged exposure to low temperatures will reduce the battery's lifespan.

Buffer and Cyclical Operation:

It's necessary to differentiate between the possible applications of AGM batteries, dividing their operation into two categories.

- Buffer Operation – In all situations where the battery is connected to the power supply system, serving as an auxiliary function, in case of a power outage, it will provide additional power supply. This form of battery operation is most commonly used in various emergency lighting and alarm systems.

- Cyclical Operation – This is the most common use of the battery, involving its use as an independent source of energy. In this way, cash registers, lawnmowers, golf carts, and wheelchairs are powered.


Summary:

In summary, the list of potential benefits seems extensive, especially when comparing it with predecessors of AGM batteries in terms of safety and performance parameters. Unfortunately, charging such batteries remains problematic as it requires specific charging conditions. It's recommended to use voltage stabilizers capable of continuously controlling the power level consistent with the requirements provided by the manufacturer. Overcharging an AGM battery can negatively affect its lifespan, reducing the capacity of stored energy.