The use of lithium batteries for personal applications is gaining popularity because of their countless benefits. Lithium batteries can store surplus energy generated from solar rooftop panels, allowing homeowners to use this energy at night or during high electricity price periods. They are space efficient, and within a small package, they are able to store a large amount of energy because they have high energy density, which is a distinguishing mark of lithium-ion batteries. Given that they would only require sporadic maintenance, they have extended cycle lives, meaning that they do not need to be replaced frequently. Moreover, some units contain smart functions that enable them to be connected with home energy control systems for enhanced management and efficiency.