As described. Very good quality plastics. Nice solid feel. Has some weight - a good sign. Clamps good as well. Teeth aligns properly. Thick flexible cable even at cold temperatures. Useful LCD with percentage, power bank capability, sufficient flashlight. Everything is intuitive and works first time. Case also very well made and has some free space to put something in it as padded divider does its job securing main compartment with booster. A down side is capacity - twice fully discharged and fully charged brought only ~13Ah (see pics). So it is far from 20Ah that is for sure. But at this price range, overall quality and features - I will not complain. Have not tested in a field though. To Lithuania in 6 days from Poland warehouse. Definitely recommended.
its work but its limit with time so u have to do it quickly in 15 -20 sec and if u miss the time u need to disconnect and do over