The device does not have an inbuilt rechargeable battery to continue running without a power connection. It requires an external power source, such as a car adapter or mains adapter, to function. The cooler is designed to operate on 12 V, 24 V or 230 V, but it does not store energy internally to operate without a power supply.

Thank you very much for pointing this out. We will be happy to pass this on internally to the responsible department and hope that this will be adjusted promptly.

The volume of the cooler is not described as annoying in most reviews. Some users mention that it works quietly, especially once it has reached the desired temperature. However, there are also reports that it can be a little louder during the cooling process.

The cool box has a nominal input power of 54 watts. This will be adjusted soon.

This is a special connection. You can see it clearly in the video here: https://www.youtube.com/watch?v=Cls_lPzWuRc&t=1s