STARTER CHARGER ULTIMATE SPEED ULG17 MEGA REVIEW

I have bought this Ultimate Speed charger, model ULG 17 (in Lidl supermarkets) and I wanted to do some tests to see how it works, I share them with you.
Is used:
Ultimate Speed Ulg 17 booster charger
Kaiweets KM601 Multimeter
Brymen BM037 Current Clamp