Tried different settings with fix voltage (5, 9, 15) on several power adapter- worked fine, but if I select f.x. 18 V on a PPS based Power Adapter (Anker) then the select voltage is ok only for several seconds and then it resets and start over again (loop).

Response from Clara Hobbs | May 3, 2019

I'm sorry to hear about the problem you're having! If you could please send me a message on the Tindie community forums, I'd be glad to try to get it resolved (most likely starting next week; I'm crazy busy this weekend). In particular, if you could include the exact model of charger you're having trouble with it could be a big help. Thanks!