Balance zero star !!!

Bought for 13.99 euros the scales at eBay.
Equipment absolute rubbish !!!
When removing the release film in the battery compartment immediately afterwards came the holder of the battery.
At this two thin Käbelchen attached these trips very easily.
After I had this reattached, test the balance.
Since pretty much everything is from zero to something in there, despite a level surface.
The Antippfunktion has with me, weighing about 83 kilos is not working.
Had to balance on one side slightly and settle again.
My probably had a tilt sensor. ;-)
I had to write because I have disposed of the balance as soon as possible.
Was me back and forth to the post office is not worth.
But have expanded the lithium battery, which covers the cost of something.