Pierre Freysinger

Pierre Freysinger is the most technical profile at Best Batteries, and probably the one who makes the rest of the site possible: he runs the infrastructure, the product database, the partner integrations and, above all, the user experience. Trained in computer science in Strasbourg and then in human-computer interaction, he wears the rare double hat of developer and interface designer. That sensibility runs through his whole way of testing: a product is worth not only its spec sheet, but what you feel while using it.

Where many stop at the numbers, Pierre hunts down what shows up in use and never on the box: a screen unreadable in bright sunlight, an inaccurate charge indicator, a poorly thought-out cable, an absurd companion app, a charging standard badly respected. Curious to his fingertips, he sometimes takes products apart to judge the quality of the solder joints and the presence of protection circuits. It is this eye that makes him credible on regulatory and connectivity topics, like his reference article on mandatory USB-C in the European Union.

His German, inherited from Alsatian roots, lets him follow the documentation and the manufacturers of Central Europe, a quiet but valuable asset for the team. On Au Frais, he applies the same demanding eye to the ergonomics of appliances, from connected fans to the interfaces of portable air conditioners.

Single and a self-confessed geek, Pierre devotes his evenings to home electronics projects based on Raspberry Pi and Arduino, when he is not escaping into a video game or a tabletop role-playing session. He even automated part of the warehouse lighting to optimize its consumption, a bit of tinkering perfectly in step with the company's eco-responsible approach. True to form, he often starts a test by switching off all of a device's useless beeps: for him, a good product must stay understandable once stripped of its gimmicks.