Panels typically come in either 12V and 24V options. Voltage: Be sure to check the voltage of the battery bank to ensure it is compatible with your panels and the rest of the system, particularly your solar panels. If you need to power certain appliances for long periods of time, you'll need more batteries to carry a bigger load. You’ll also need to do more maintenance on a flooded lead acid battery, and time means money.Ĭapacity: Battery capacity is important because it measures the amount of energy you can store. Price: Be sure to consider the ultimate lifetime and not just upfront costs, as you will have to replace lead acid batteries before you will need to replace a lithium iron battery. When shopping for batteries for your solar installation, there’s some different factors to consider: price, capacity, voltage, and cycle life. What should I consider when deciding on a battery for my solar panels? In contrast to car batteries which only provide short bursts of energy, deep cycle batteries are designed to provide sustained energy over a longer period of time making them perfect for solar applications. Let’s talk about absorbed glass mat batteries, what their advantages are, and if they’re the right battery for you.ĭeep cycle batteries look similar to car batteries, but are actually very different. Sealed lead acid batteries, which include gel and absorbed glass mat batteries, store 10 to 15 percent more energy than lead acid batteries and charge up to four times faster. However, because they are somewhat high maintenance and not very efficient, many opt for sealed lead acid or lithium iron phosphate batteries for their solar installations. Flooded lead acid batteries are definitely the most inexpensive option and are widely available. When it comes to thinking about deep cycle batteries, many people often envision typical flooded lead acid batteries available at most big box stores.
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