The best product, from those that I have viewed, I advise everyone!
A reliable, powerful device! It will reveal its full potential when used in a car service. And for off-season recharging of your battery, a device with a capacity of 6-7A is enough.
Pros
In 30 minutes of a charge at 20A, I started a car with a frozen battery at 105Ah.
Cons
The line "charge is over" appears too early, it does not make sense. After that, the battery continues to charge.
I charged three different batteries (55,60,62Ah) to full, and never could wait for the last stage of the "buffer mode".