How to charge the POWERCRANK-E battery?

Make sure that the magnetic connector is not dirty, if necessary, gently remove the dirt, for example, with a cotton bud. Do not use force for this purpose.
Plug the dedicated USB cable into the mains charger (you will find it in the box together with the purchased meter).
Bring the two magnetic connectors close to the charging sockets on the POWERCRANK-E cases. Pay attention to the correct polarity of the connector! Do not use force, the proper orientation of the connector will be forced by the magnets.
The LEDs should indicate charging with a corresponding light signal.
The process of full charging takes about 2 hours.