the most relevant critical review
However, the CTEK ONE charger that I purchased from Conrad Electronics does not work.
I cannot get it to connect via Bluetooth with my phone. It connects for the briefest moment (e.g. 0.1s) and then disconnects for a few minutes, and this cycle continues.
I tried placing the phone 5cm from the unit. I tried rebooting the unit. I tried rebooting my phone. I tried uninstalling the App from my phone and reinstalling it. I tried uninstalling the charger from “my devices” and reinstalling it. I also tried using a different phone – but same result.
I contacted CTEK, who advised as follows: “Please return the charger to place of purchase and they will handle your claim in a professional and timely manner.”
I have contacted Conrad Electronics multiple times over the past 4 weeks to raise a support case but all I ever receive is an email saying " We are currently experiencing a higher than normal volume of emails. We are working on the oldest tickets first, so creating multiple tickets will not lead to a faster reply. Thank you for your patience and we will get back to you as soon as possible."
I am in the dark as to whether or not I will ever receive a reply!!
I do not recommend dealing with this company, and at this stage I do not recommend CTEK chargers!!