Hefei Kewell Power System Co.,Ltd. manufactures and sells test power supplies and systems in China. It provides high precision DC power supply, high precision programmable and bidirectional DC power supply, battery simulator, fuel cell battery simulator, photovoltaic array I-V simulator, battery pack charging-discharging test power, and energy recycling DC electronic load systems. The company also offers AC energy recycling analog grid power supply, intermediate frequency power supply, e-motor emulator, and energy recycling AC electronic load systems; and photovoltaic inverter, DC charging pile, fuel cell DC-DC, fuel cell engine, fuel cell stack, fuse, and contactor/relay test systems, as well as PV array IV curve testers and customized power supply systems. Its products are used in industrial fields such as new energy power generation, electric vehicles, fuel cells, and power devices. The company was founded in 2011 and is headquartered in Hefei, China.