ELECTRICITY STORAGE SYSTEM, METHOD FOR CONTROLLING SECONDARY BATTERY PACK, AND SECONDARY BATTERY PACK

摘要

In this electricity storage system having a plurality of secondary battery packs, at the time of switching a subject to be charged from a first secondary battery pack to a second secondary battery pack, which has a voltage between terminals lower than that in the first secondary battery pack, a path for flowing a charging current for charging secondary batteries that are provided in the second secondary battery pack is formed by having a current limiting circuit of the second secondary battery pack operated, and charging of the second secondary battery pack is started, while limiting the charging current to a fixed value or less by means of the current limiting circuit.