Scaling multiple time series data
Rather than using MinMaxScaler, I think StandardScaler would be a better option if you have outliers that are quite different from most of the values, but are still valid data.

StandardScaler is used the same way as MinMaxScaler, but it will scale your values so they have mean equal to 0 and standard deviation equal to 1. Since those values will be found based on all the values in the series, it is much more robust against outliers.