| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device having a plurality of blocks including different numbers of battery cells that accurately detects voltage of each of the blocks.SOLUTION: A power storage device 110 includes a plurality of blocks connected in series. The plurality of blocks include first blocks BL1, BL2, BL7 and BL8 connected to a first number of battery cells in series and second blocks BL3-BL6 connected to a second number of battery cells in series, the second number being larger than the first number. A voltage detection circuit 160 includes a voltage detection part 161 having a detection range suitable for a voltage of the first block, a voltage detection part 162 having a detection range suitable for a voltage of the second block, and selection circuits SW10-SW18 for sequentially selecting the blocks whose voltages are to be detected among the plurality of blocks. The voltage detection parts 161, 162 are electrically connected in parallel to a selection circuit. |
