Exactly, when it comes to highly complex chemical and electrical engineering and physics (as is the case with Smartphones and their lithium-ion batteries), I will take it as an inditcator if it comes from well-established testers with professional equipment like GN (Gamers Nexus) or other established technical journals when talking outside of the video world, but will not accept it as a general and genuine technical (!) insight until it has gone through the due process of scientific publishing and peer review...

Even then I prefer meta-studies, since they reduce biases and general inaccuracies.