Turns out constantly

So, I bought about 6 months ago, the charging station. The station has an automatic shut-off the eigendlich well is because the device is not to be loaded permanently. Unfortunately, even then, the off when the devices are not yet fully charged. My phone - Samsung S4 example I invite overnight and in the morning I loaded only 50% ... then it is not enough on the day. Bin again gone over to normal charging cable and no longer use the station.