Solar batteries form part of a solar system and are charged with energy captured by solar panels or from the grid. The sun’s energy is converted to Direct Current (DC) energy which is then converted to useable Alternating Current (AC) energy through inverter technology. The AC energy is distributed throughout homes, buildings and work areas with any excess energy stored in the solar batteries for future use.Solar batteries are available in different technologies and capacities. Lithium-ion batteries with a built-in battery management system and high cycle life are increasingly becoming popular and affordable. With the battery being the heart of any back-up power system, choosing the correct solar battery technology and capacity is an important step in the design of a solar or back-up power system to meet the customer’s requirements.A complete solar system with solar batteries sized for the customer’s requirements provides both security of supply during load shedding and grid failures, as well as electricity cost savings from own energy generation through solar panels. It is advantageous, empowering and an excellent long-term investment.