Photovoltaic cells are classified by substrate material and can be divided into P- and N-type batteries. . The aforementioned aspects are quite important, but choosing a photovoltaic (PV) module featuring a P-type solar cell or an N-type solar cell, can make the difference in the performance and lifespan of the module. While both convert sunlight into electricity, they differ in base material, manufacturing process. . Our hope is to help you narrow down which type of solar battery best suits your needs so you can focus your search on one or two specific brands or models. Click to jump to a section: Why use a solar battery? Let's start with a quick recap of why and how homeowners use batteries to store solar. . Simply put, N-type solar panels are made with N-type solar cells, whereas P-type solar cells combine to form P-type solar panels. Let's get into further specifics of both technologies. N-Type Solar Panels: In these panels, silicon is doped with elements having more valence electrons, such as. .