Forgive my ignorance, I'm not an electrical engineer. Can someone explain why there apparently are no decent chargers for 9V blocks? There are two issues I would like to clarify:
Normally, you can not charge LiOn batteries on a NiMh charger and vice versa. Also, I have never seen a consumer grade charger that can handle both types. However, with 9V, some claim that they can charge both NiMh and LiOn. I suspect faulty product description, and find it dangerous, but what does an expert say? Is it even possible for the charger to detect the type of cell? Can a 9V LiOn block blow up in such a charger?
Why is it so difficult to charge 9V blocks with the same comfort as 1.2V cells? I have yet not seen a charger that displays the current charge status & progress bar and has a reliable charge stop. With 1.2V cells, almost any 30EUR charger can do all of these things. Are there technical issues at work, or is it just a matter of poor/cheap product design to increase profit? Because even the "high end" devices do not do a better job at this.
I'm talking about consumer grade devices in the price range below 50 EUR.