Works fine, is a little warm, estimated 45 ° C at the hottest point. When using it should be "free" be such that the heat can escape and air can flow through the lateral grooves. Analyzes the battery's on voltage and capacity and displays also. One can vary the charging current in a plurality of stages. The display lights up constantly or as long as it depends on 220V ~. You could possibly in a new version of the device after 1 min off., And reactivate when pressed. The advantage of this is that it can be clearly seen in the night and sets out if it is not needed. So you go repeatedly back to the device and looks to see if it has finished loading. Have now a 2.tes in reserve or to give away.
