The invention discloses a
discharge control strategy, device and apparatus of a
battery system, and the control strategy comprises the steps of obtaining the characterization parameters which represent the
branch usage rate of the
battery system, wherein the characterization parameters at least comprise the
branch current value of the
battery system and the battery temperature; based on the characterization parameters, determining a
discharge branch of a
load capacity specification required by the
discharge of the battery
system; and controlling the determined discharge branch with the corresponding
load capacity specification to be conducted. According to the invention, the load specification required by the discharge of the battery
system is determined by using the obtained characterization parameters, and then the discharge branch of the corresponding load is conducted, so that the technical problem of low
utilization rate of the discharge branch caused by the fact that a plurality of discharge loops of the battery
system adopt the same load specification in the prior art is solved; and the technical effects that the discharge branches with different
load capacity specifications can be selected according to the discharge capacity, and the
utilization rate of the discharge branches is improved are achieved.