Was then tested with 3 different car batteries and no longer went every time since then.
Again and again disorder.
Now have a charger of a large North German food discounter with the four letters for 17.99 buy.
Works flawlessly with exactly the same batteries.
Compared with this newly purchased Charger Alpin acts inferior despite the higher price.
The insulation at the terminals slip off easily -> are plugged. When comparing unit completely encapsulated with plastic clamps.
The plastic casing is not as high as in the comparative device.
Said comparison unit has a nice backlit LCD screen, which does not have the Alpin.
Finally, Alpin has significantly shorter cable "top" than that;) compared device.
If it would have worked, you could overlook these things. But does it not, and now I can not even return unfortunately. :(
When comparing device I have 3 years warranty. :)