I bought one. It does not charge two batteries at once, it lets you hook two batteries up. It charges one first, and then charges a second one, once the first one is done.
I was tricked and then my lcd screen stopped working 5 months into owning the charger, and helidirect wouldn't help me out.
They told me to contact assurance rc and deal with them, assurance said that the charger only has a 90 day warranty and that I would have to send my charger back to them, and buy a new one at half price.
So don't buy that charger, first it doesn't charge two batteries at once, and second my lcd screen went out in 5 months.
This was the worst purchase I have made in rc.