AGM batteries

Basic principles of AGM batteries

AGM batteries are a type of VRLA batteries, they can be AGM batteries o GEL batteries. These lead-acid batteries are designed with a fibreglass mesh that absorbs the electrolyte by capillary action, thus providing greater safety.

AGM in a battery means "Absorbed Glass Mat. AGM batteries are energy storage devices with "absorbent glass separator". Thanks to this innovative technology, the glass fibre separators, located in the lead plates of the batteries, absorb the acid more easily. In the event of a rupture, the liquid does not spill out, making them a more efficient and safer choice than lead-acid batteries traditional.

Characteristics of AGM batteries

• Fast charging time due to less resistance inside. The charging process is streamlined and efficiency is maximised.
• Leak-proof, due to their sealed design. AGM batteries can be installed in any position, as there is no danger of spillage.
• Possibility of use in various applications. They are rechargeable batteries and very efficient in photovoltaic, industrial or domestic installations.
• These batteries have low internal resistance. They accept very high charge and discharge currents. AGM batteries allow a large number of cycles.
• Maintenance-free due to their sealed design.

AGM batteries are an excellent choice for photovoltaic installations, both industrial and domestic, and can also be used in cars and campers.

These batteries are also designed to meet high energy demands in vehicles. AGM technology is being implemented in high-end vehicles that are equipped with the automatic 'Start-Stop' system and require high cold-start power.

The self-discharge of AGM batteries is low, making them ideal for applications where the charge needs to be conserved over long periods of time without consumption.

Which AGM battery to choose?

AGM 6V batteries are designed for small photovoltaic installations or for other uses that require a lower voltage. AGM 12V batteries are ideal for domestic or industrial use in medium to large photovoltaic installations.

The amperage of the battery should also be taken into account. AGM batteries 100Ah, as the Victron 12V/100Ah AGM Super Cycle Battery (M6) - BAT412110081.

It is very important to choose the right charger as the AGM battery may be irreversibly damaged depending on the charge it receives. If the charger is too small, it is possible that the battery will not be fully charged and it will take many hours. On the other hand, if the charger supplies too much current, it could overcharge the battery.

To select the charger, a 1-10 equivalence value must be taken as a reference. In other words, if we have a 150 Ah battery, the ideal charger will be 15A.

AGM Battery: How much does it cost?

There is a wide variety of AGM batteries, you must take into account the needs of the installation, expected voltage, and end use to choose one type or another. At FVComponentes.com we have a variety of AGM batteries with prices from €20 to €600. The factors that influence the price of these devices are the use to be given, the energy demand and the type and model.

At FVComponentes.com we have AGM batteries at very affordable prices to suit all budgets, if you don't know which one to choose send us an email at [email protected]. Our technicians will help you choose the AGM battery that suits your needs to ensure its life and performance, and always at the best price and with the highest quality.

Buy an AGM battery

At FV Componentes we are committed to Victron AGM batteries. In addition, we are official Victron technical servicePlease send us an email to [email protected] if you need us to advise you on technical aspects of AGM battery purchase to suit your needs and ensure battery life and performance at the best price.

Uses and applications of AGM batteries

AGM batteries are a popular choice because of their versatility. Here are some of their applications:

• Industrial and photovoltaic installations: These batteries are the most widely used in the industrial photovoltaic sector, as they offer excellent performance and a long service life. They are also an excellent option for isolated self-consumption installations that need accumulators with a large energy storage capacity for domestic use.
• Housing: These batteries are also widely used to power household appliances. They are ideal to cover the consumption of refrigerators, washing machines, microwave ovens, etc.
• Vehicles: They are also widely used for golf carts, boats, caravans, campers, jet skis,...
• Other uses: robotics, alarm systems, telecommunications, medical equipment, auxiliary systems on ships, etc.

Installation and maintenance AGM batteries

The AGM battery must be installed with the terminals at the top to ensure proper operation of the AGM battery. It must be protected from direct sunlight, high temperatures and rain or wind, so it should be located indoors. In order to guarantee the lifetime and efficiency of the battery.

The weight of AGM batteries must be taken into account, so it is recommended to use the necessary material to move the battery without difficulty and to avoid damage.

AGM batteries can be connected in parallel up to 4 units, although 2 units are recommended. AGM 12V batteries can be connected in series up to 4 units to reach a voltage of 48V.

They do not require neither checking of the internal acid levels nor their periodic control, the maintenance of these batteries is null, due to their monoblock topology.

For installation in photovoltaic systems it must be taken into account that not all solar panels are compatible with any battery. For example, a 12V AGM battery must be connected to a solar panel of the same voltage or a 12V AGM battery can be connected to a higher voltage solar panel but an MPPT must be installed to enable compatibility. An inverter of the same voltage must also be chosen, such as the Inverters 12V to 220V.

AGM Battery Warranty

The warranty on these batteries purchased from FVComponentes.com is two years from the time of purchase, provided the battery has been used correctly and the manufacturer's recommendations have been followed.

According to the manufacturer's recommendations, these batteries should not be connected in parallel, as this may affect the efficiency of the AGM battery. It should be installed with the terminals facing upwards and protected from direct sunlight, high temperatures, rain or wind.

Configuration of the charging stages of the accumulators

The following picture shows the standardised charging voltages of the different charging phases of lead-acid, AGM and GEL batteries:

It is advisable to check the charging voltages in order for the battery to work properly. It is necessary to adjust the different charging stages depending on the type of battery (lead acid, AGM or GEL).

Funding

At FVComponentes.com we work with Cetelem to offer you ease of payment. If you want more information about financing, check the Cetelem website or contact us by phone or mail.