NOPE,
to run the dyno you need the lead wires to be connected to the motor and plug the dyno in the front. To charge a pack you wouldn;t have anything to connect to it as the lead wires are already attached to the motor. or vise versa.
Hope this helps,
Stephen <><
By the way Tre's Leanard should have face plates for it soon, as I am sending him my until today so he can get all the measurements,
Take Care & GOD Bless
Stephen <><