Bill;
I understand completely. I use thes in Q-500's and QM 40's as well sport aircraft. I love the simplicity as I hate complicated charging system's. But I mostly detest over priced simplicity. A common NC Socket and a a Jack works the same as a Dang near $40. alternative. Direct connection to the Receiver and the battery eliminates Loss and resistance thus the charge/discharge rates are nearly the same as original designed equipment.