DFUN has developed a remote online capacity testing solution for 48V backup battery systems. This solution integrates multiple functions, including remote capacity testing, energy-saving discharge, intelligent charging, battery monitoring, and activation. It effectively addresses challenges such as the time and effort consumed by manual inspections, the difficulties of offline capacity testing, and maintenance issues arising from dispersed sites. It is suitable for substations, control centers, and energy storage power plants. Apart from this, we also offer 48V Smart Lithium-ion Battery.