There are 2 main battery options available in the market, lead-acid and lithium-ion batteries. Lead-acid batteries are the oldest solar battery and have one of the lowest lifespans and Low depth of discharge (DOD) at 50% and below in the market. They cost less up front, but they have a shorter lifespan and require regular maintenance to keep them running properly. This type of batteries also requires a lot of space for installation when used in C & I and Utility solar systems.Lithium-ion batteries are a premium solar battery type with higher depth of discharge (DOD) at up to 90% and above. They are much more expensive up front, but they are maintenance-free, more efficient and have a longer lifespan.Lithium-ion batteries are rated in higher capacities (kwh) and hence less installation space.These types of batteries are best for C & I and Utility Solar Systems in areas with weak or no Grid.Lithium-ion batteries have longer life span of up to 10-15 years. Lithium-ion batteries with big capacities (e.g. 200kwh- 3Mwh) are available in containerized systems hence easy installation and configuration. Most Lithium-ion batteries have online/ remote cell monitoring systems.Lithium-ion batteries are available for use in high voltage systems of up to 1000VDC Bus system voltage hence lowers cost for Battery cables.