See instructions in the photo. It will become clearer what kind of unit it is.
I think the whole "S" series works the same way.
Pros
- Well, soundly made and looks accordingly.
- Charges many different types of batteries.
- Has various "fool protection" and low-quality batteries. But this is only according to the description. In fact, we didn't have to face it.
- Bright, easy to read LCD display.
Cons
- Weak product description in Ya. Market. Everything turned out to be a little different from reality. But not critical. I photographed the instruction in 2022 - read it carefully.