Next to the Tourist Information in the historic Teichsmühle (Teichsmühlengasse 3), there is a charging cabinet where you can safely lock your battery during your stroll through town and charge it with your own charger free of charge.
Activation is by SMS code or alternatively with a key for the compartments, which can be borrowed from the Tourist Information during opening hours. Charging is done with green electricity from the Soest municipal utility.