Amperes - battery charge info calculates your charging scores based on many factors and formulas and gives you precise charging score.
You can run a single test or non-stop test. Non stop test will constantly monitor the charging and will output it into the results table. You can configure each test or configuration by specifying the charger type, wire type, etc. Or provide custom comments. Once you done testing you can export the results in an easy to use table view.
It is a best place to start - read the help section. That will teach you everything you need to know before starting your first tests.
You can see which charger and charging wire is actually the best for charging your device. Compare chargers, wires, wireless chargers or a combination of those components. You will get surprised, how big difference can one bad wire make.