Trusted Reviews is supported by its audience. If you purchase through links on our site, we may earn a commission. Learn more. Powermat Starbucks to trial Powermat wireless charging stations in UK Unsurprisingly, it's London stores only for nowS Tech News Chris Smith Powermat Wireless Charging System Review Score We take a look at the chargers and cases in Powermat's exciting contact charging system and find results vary wildly. Powermat Gordon Kelly Page 1 of 1