A structure of detecting an anomaly of the battery pack including a plurality of battery cells connected in series or in parallel, which detects whether or not an impedance of at least one of battery cells deviates from a stipulated range. Either the electrode or the nozzle is movable with respect to the main torch body, and the movable component defines a projection. If a respective process detects that shared data used by respective process was modified during a transaction, the process can abort and retry the transaction rather than cause data corruption by storing locally maintained results associated with the transaction to a globally shared data space. The fan shroud is fastened together with the radiator core to the radiator support members. The fins are retained in a fin channel between a pair of ridges.