HOW TO CHARGE THE TWIN2 POWER METER?

Make sure that the connector is not dirty, if necessary gently remove the dirt e.g. with a cotton bud. Do not use force to do this.
Plug the dedicated USB cable into the mains charger (you will find it in the box with the meter you bought)
Bring the two magnetic connectors close to the charging sockets on the POWERCRANK TWiN2 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 an appropriate light signal.
The process of full charging takes about 2 hours.