The invention relates to a storage
battery pack with an automatic capacity verifying function and used for a
power substation. The storage
battery pack comprises a plurality of storage batteries, an energy-feedback
electronic load and a capacity verifying unit. The capacity verifying unit comprises a
variable resistance box, a
control switch, a plurality of
voltage detecting modules, a current detecting module, a controller and a
power module, wherein the
variable resistance box is serially connected with the storage batteries to form a capacity verifying loop, the
control switch is used for controlling the storage batteries to connect or disconnect with the capacity verifying loop, the
voltage detecting modules are used for detecting
terminal voltage of the storage batteries respectively, the current detecting module is used for detecting a current value of the capacity verifying loop, and the controller is used for controlling and regulating a value of interposing resistance of the
variable resistance box, controlling the storage batteries to connect or disconnect with the capacity verifying loop, recoding various parameters in a capacity verifying process and calculating the capacity of the storage
battery pack. The storage battery pack has the advantages that the value of the interposing resistance in the capacity verifying loop can be regulated automatically, the capacity of the storage battery pack can be verified, low degree of worker participation during
verification is realized, the resistance is regulated precisely, and a
verification result is more precise and more stable.