| 摘要 |
Provided is a battery system which can easily identify a portion where a fuse is blown when the fuse is blown even in a large-scale battery system where a plurality of batteries are connected in series. The battery system includes a battery pack including a series circuit where a plurality of battery modules are connected to each other in series, the battery module including a fuse which is connected in series to a battery cell, and a light emitting diode which is connected in parallel to the fuse and has an anode thereof connected to a positive pole side of the battery cell; and a switching element which is connected in parallel to the series circuit.
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