There are in fact a great many types of chemical based batteries, however the majority of the manufacturers of residential storage systems for safety reasons primarily use Lithium Ion Phosphate (LifePo4) for the main powercell. Some still use cobalt or manganese in their batteries and for this reason alone we will not install these products. However it’s the quality and grade of materials used, combined with their % of mix that heavily influences the durability, stability and reliability of the powercore. As with any industry the lower the grade of materials used the poorer the level of performance will be received.