As people across the globe are realizing the harmful effects of traditional energy sources, there has been a considerable rise in solar power system installations, especially in India. And this spreads across all sectors, including residential, commercial, industrial, and agricultural, owing to the vast range of benefits that solar energy has to offer.
However, if you’re planning to switch to an off-grid solar PV system, finding the right solar battery is of utmost importance as you are reliant on the device for power backup. Thus, this guide will discuss all the factors that you need to evaluate to purchase the best solar battery. But before we get started, let’s briefly understand how the device works.
Image Courtesy: Luminous
What is a Solar Battery?
A solar battery is a device that is used to store excess electricity produced by solar photovoltaic (PV) panels. The stored energy can then be utilized during electricity cuts, at night, and even when there is no direct sunlight. However, solar batteries are only designed for off-grid and hybrid PV plants as they come with battery backup. And you don’t need to purchase one if you wish to install an on-grid or grid-connected solar power system.
How to Buy the Best Solar Battery?
If you’re on the lookout for the best solar battery, here are the factors you need to consider:
- Capacity or Size of the Solar Battery
A solar battery’s capacity or size, which is typically measured in Kilowatt-Hours (kWh) or Ampere Hour (Ah), refers to the amount of electricity it can store for later use. However, the capacity will vary depending on several factors, including the battery technology, manufacturing process, design, and more. But the main aspect you need to evaluate is your daily power consumption, and the higher it is, the higher the battery’s capacity should be.
- Solar Battery Type
In order to buy the best solar battery, you must choose the right type. In the Indian market, solar batteries are available in two main variations, namely flat-plate and tubular. Both these types differ depending on their efficiency, design, temperature performance, and other features. Therefore, you need to select one based on your preference and unique requirements, but don’t forget to be thorough with your research.
- The Battery’s Depth of Discharge (DoD)
Depth of Discharge (DoD) is a metric that indicates how much of the solar battery’s capacity can be used. The DoD is usually specified by manufacturers as it is essential for a solar battery to retain some charge at all times. Plus, this is also crucial for the battery to perform optimally. For example, if a 10-kWh solar battery offers 90% DoD, you will only be able to utilize 9 kWh before the need for a recharge arises. So, it is best to look for batteries with a higher DoD.
- High-Temperature Performance
When buying a solar battery, it is crucial to choose one with high-temperature performance, especially if you live in hot weather conditions. This is important because batteries can cause certain safety hazards like short circuits due to overheating and overloading. So, always make sure you invest in solar batteries that provide high-temperature performance and are suitable for extreme weather conditions.
- Warranty Period and Brand
Two of the last things you should consider are the warranty period and the brand of the solar battery. While the warranty coverage varies from one seller to another, the average duration is anywhere between 24 to 36 months. However, the higher the warranty period, the better as you won’t have to pay for any manufacturing-related defects from your own pocket.
Lastly, you must opt for a reliable and reputable brand like Luminous. Luminous offers high-quality and efficient solar batteries that are also affordable, so make sure you visit their website!