Types of solar batteries

Types of solar batteries

Today we want to talk to you about the different types of solar batteries that exist. With this information you will know how to choose the appropriate solar battery depending on the solar installation that you want to put in your home or business.

Solar batteries are the equipment that allow the energy generated by solar panels to be stored during the hours of solar radiation. Thanks to these batteries, users can use surplus power at night, on cloudy days, or at times of increased power demand.

One way to differentiate the types of solar batteries is by looking at the type of technology that has been used in their manufacture.

Open Lead Acid Solar Batteries

  • These solar panels, also known as lead acid batteries, consist of six compartments connected in series, which are submerged in sulfuric acid. Each plate of this battery contains positive and negative plates, which alternate.

  • They are one of the cheapest batteries you will find on the market.

  • Due to its high performance and low cost, it is one of the most widely used types of solar batteries in isolated solar installations.

AGM batteries

  • AGM (Absorption Glass Mat) batteries are manufactured with a technology that facilitates and speeds up the absorption of acid from the plates of this equipment.

  • One of the great advantages of AGM solar batteries is that thanks to their sealed design they do not require maintenance.

  • They are recommended in demanding solar installations, since they can withstand a large number of cycles.

  • They are also used in caravans with solar panels, because they can function as a starter battery.

  • Its useful life is very long and its operation of high quality.

Solar Gel Batteries

  • The main difference and advantage of this type of solar battery is that they contain gelled electrolyte, and being perfectly sealed they prevent the release of harmful solar gases.

  • They are suitable for installation in places with little ventilation.

  • It is a battery that offers great durability and efficiency.

  • It does not need maintenance and its care is very simple.

  • Gel batteries are recommended for small and medium-sized solar installations.

Lithium battery

  • Lithium batteries offer a high charging speed, especially when compared to other types of solar batteries.

  • Their useful life is also long and they have a high energy density.

  • Another advantage of lithium batteries is that they do not have a memory effect, so they do not suffer when they are 100% discharged.

  • They are light in weight and easier to carry.

  • As it does not emit gases, it can be installed in a place without ventilation.

  • Although at first they were used especially in industrial photovoltaic installations, in recent years they have gained importance in the domestic sector.

Stationary solar batteries

  • Stationary batteries are always charged

  • Thanks to its regulator, the battery is charged when a discharge occurs. This means that the battery is rarely discharged.

  • There are different types of stationary batteries. Absorbed electrolyte batteries are maintenance free, while stationary wet electrolyte batteries do require the acid level to be checked relatively regularly.

  • Its useful life is long and the deep discharge cycles offer good results in any type of consumption.

How to choose the right solar battery?

Among so many varieties and types of solar batteries, it can be difficult to choose the right model based on the needs of each photovoltaic installation. The best thing to do to make an optical choice is to seek advice from a company specialized in solar energy and its specialized technicians. But here are some guidelines that could serve as a guide:

  • Take into account the size of the solar installation

  • Make a budget, there can be a great economic difference between one type of battery and another

  • Energy needed by the home, premises or caravan

If the correct choice is not made, the battery could have a negative impact on the rest of the installation, in addition to having to install another battery in a short period of time.

Whatever the final decision, it is important to maintain and care for the batteries properly, since in this way their useful life will be much longer.

Types of solar batteries, which is better?

There is no single best type of battery. The most appropriate answer is that each type of solar installation will require a specific type of battery. At Varisolar, in addition to being able to buy your complete solar kit and solar batteries, we have extensive experience as solar energy technicians.

We are an online store specialized in solar energy. Contact us without any commitment and we will help you choose the most suitable solar battery for your photovoltaic installation.

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