AGM batteries are one of the types of valve regulated lead acid batteries, a battery that is used for long term power storage. They are commonly used in telecommunication, solar, photovoltaic and various other applications. Their main features include their low self-discharge rate, their high reliability and their ability to tolerate high temperatures.
These batteries are manufactured through a process that involves effective compression of cell elements. This ensures that resistance will not increase during cycling, and therefore the capacity of the battery will stay consistent.
To improve the service life of an AGM battery, it is important to keep the battery at a constant level of charge. This is also vital to prevent premature failures. For this, a good quality battery charger is necessary. It should also include a digital voltmeter to show the current.
The battery should also be installed at a location that does not allow for acid spray. Otherwise, the battery may corrode or explode. Moreover, a proper ventilation system should be used for maximum heat dissipation.
These batteries are available in different sizes, depending on the voltage. Generally, the voltage ranges from 2 to 12 V. However, there are some models that can handle voltages as high as 14.4 V. You can choose the one that is suitable for your application.
Another advantage of an AGM battery is its ability to survive in a semi-sealed environment. Since the battery does not require water addition, it can be placed in places where acid spray is forbidden. If you use a boat, for example, you can recharge the battery through a special charging system.
Because of its unique design, the battery is able to retain its electrolyte. However, agm batteries Malta the battery should be charged as soon as possible after discharge.
AGM battery has a one-way release valve that prevents accidental ingress of air. As soon as the internal pressure exceeds the vent pressure, the valve closes. In turn, the oxygen and hydrogen gas is vented to the atmosphere.
Water loss will reduce the level of electrolyte in the battery. This means that you will have to charge the battery more often. Although, it will require less effort.
When using an AGM battery, you should always have the battery fitted with a battery charger that is suitable for it. If the charger is not compatible, it can break up the water molecules inside the battery, which can cause the battery to lose its negative polarisation. Additionally, it can cause the electrolyte to become acidic.
Another issue with an AGM battery is the risk of dry out. It occurs when the charger delivers a higher voltage than the battery can tolerate. This will accelerate the reaction and result in an increased rise in temperature. Dry out increases the recombination rate, resulting in less battery life and local corrosion.
Battery performance is also dependent on the number of cycles. Since the recombination reactions are exothermic, they can produce a high amount of thermal runaway. That is why it is important to have a charger that can provide a constant voltage to the battery.