In terms of efficiency, using the same capacity of the battery, the battery current of the high-voltage energy storage system is smaller, the interference to the system is smaller, and the efficiency of the high-voltage energy storage system is higher;
In terms of system design, the circuit topology of high-voltage hybrid inverters is simpler, smaller in size, lighter in weight and more reliable.
The energy loss of low-voltage energy storage system will be relatively large, the battery charging speed is slow, and the power shortage may occur when there is a high-power load. The high voltage energy storage system has less energy loss, faster battery charging rate, and can drive more powerful loads.
The high voltage battery is a plurality of cells in series and parallel, the higher the voltage, the more batteries in series, the higher the consistency requirements of the cell, and the need to cooperate with an efficient BMS management system, otherwise it is prone to failure. The advantage of low-voltage energy storage system compared with high-voltage energy storage system is more mature, low requirements for batteries and BMS (battery management system).