The e-mark is charged between 20% and 30 % when switching on for the first time (given that the contacts of the battery are still covered with the battery pull tab). It should be possible to turn it on and make the first few imprints. During the first initialisation, it might be necessary and is reccommended to charge the e-mark in full. However, the e-mark can also be used during charging. In case, you cannot turn on the e-mark, connect it to the mains and continue the instilation.
Note: The e-mark can only be charged through the power adapter that comes with the e-mark. The USB-interface cannot be used for charging the e-mark.
The battery lasts up to five hours when marking continually and much longer under normal usage circumstances - several days up to a week when used occasionally. The battery is charged within 2.75 hours from 0 to 100 %. Nevertheless, it is recommended to put the e-mark immediately after every imprint back into the docking station, which can be connected to the power plug at the same time.