well i was sold on the onyx 245 dual lipo charger, but i soon found out it can only charge uo to 3s lipo. Im going to be getting 4s lipos so this charger wont be good for me. So now im looking at chargers again. I need one that can charge up to 4s and possibly be a dual one, but it doesnt have to be, but a dual would be better. I already have a dynamite pass port ultra sport that does great, maybe just get another one of those, but what other charger should i look at? that can hold up to 4s and charge 2 batteries at once?