A star deduction is available for the cheap-looking mount. Quite simple plastic and to make matters worse, without rubber feet. In order that the holder slides when removing or resetting the carafe back and forth and can cause scratches on sensitive surfaces. From what is mentioned in the product description "slip" can really be no question. I have created the situation by I bought a pair of rubber-adhesive feet at the hardware store and they have adhered. Now it's the way it should be.
Due to the principle but convincing I've ordered a 2nd battery.