I would like to cross post this here, as the "proper" thread is made up of mostly 2s users.

First pan car, bought the Speed Passion Cirtix club spec system, as there is a group of racers using it successfully in SOCAL (and probably many other places).

Anyway, cut trimmed and soldered everything in place last night, plan on using a receiver pack.

Here is the rest of my post as it apears in the other thread. Any help in sorting it out will be appreciated.

"New car build. using a receiver pack, I first bound a Spektrum micro receiver using a receiver battery. I then calibrated the esc to my radio using a 7.4 volt pack, no receiver pack.

The only way I can get a response from the motor is with the receiver pack plugged in, the 1s battery plugged in and the center wire attached to the plug and plugged in. Esc power switch in off position.

Without center wire, nothing. on or off".

Is there a solution (other than using a booster) to this issue, or is this the way it should work? I would think isolating the 2 batteries would be essential.

Thanks.