After discussing solar panels and controllers, it is important to turn our attention to the battery, which is an essential component of our mobile energy storage system. There are various types of batteries available, including lead-acid, lithium, nickel-cadmium, and sodium sulfur batteries. Each type has its own advantages and specific applications. In this discussion, we will focus on lead-acid and lithium batteries, which are commonly used in solar mobile trailers for lighting and CCTV purposes.
Let's begin with lead-acid batteries, which are widely used in the energy storage industry due to their strong safety features and low cost. These batteries are primarily made of lead, which accounts for more than 60% of their production costs. Lead-acid batteries can be divided into two types based on their features. The first type is the ordinary lead-acid battery, which is commonly used as a starting battery in trucks due to its low temperature discharge current. However, these batteries require regular maintenance as the internal working medium is a solution of water and sulfuric acid, which can evaporate and undergo electrolysis during use. This means that distilled water needs to be added regularly to maintain the liquid level. Unfortunately, not everyone is diligent in maintaining their batteries, which often leads to damage. The second type is the VRLA (Valve Regulated Lead-Acid) battery, which is known for being maintenance-free. This is due to its valve-controlled sealing structure and internal oxygen circulation mechanism, which minimizes electrolyte loss. These batteries do not require the addition of water or acid, and also produce less acid fog and flammable gas during operation, resulting in less environmental pollution. Compared to ordinary lead-acid batteries, VRLA batteries have a longer cycle life, which refers to the number of cycles a battery can withstand under certain discharge conditions. Traditional lead-acid batteries have a cycle life of about 500 to 600 times, while VRLA batteries have a cycle life of 1000 to 1200 times.Moving on to lithium batteries, specifically lithium iron phosphate batteries, they have a smaller volume and weight compared to lead-acid batteries of the same capacity. Additionally, they are more environmentally friendly as they do not contain heavy metals or rare metals, making them pollution-free during production and use. However, they do come at a higher price compared to lead-acid batteries.
In terms of cost, our trailers typically come with VRLA batteries by default, but we can also provide lithium iron phosphate batteries upon request. As your professional consultant for mobile new energy solutions, our solar trailers can be integrated with various loads such as monitoring, lighting, energy storage, and display. They are suitable for a wide range of scenarios, including streets, squares, mines, pastures, construction sites, and emergency situations. We have extensive experience in handling projects across the Middle East and America. If you have any questions, please leave your email address and we will get back to you within 12 hours.
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