Marco, I worked in a Delphi, (Delco-Remy), automotive battery plant the last 6 years I worked before I retired.
This product is a new one on me. That's not to say it doesn't work somehow though....
Bob & Sharon
2019 Winnebago Travato K (2018 Chassis)
Past RV's: 2013 WGO ERA 70A, Chevy PW Lexor
Itasca Navion, 29' Jayco 5th Wheel