I can’t remember if a separate charger was on your original shopping list but I have one of these for the Ni-mH frysky battery.
PERTH'S DRONE & MULTIROTOR SPECIALIST We have a passion for Multirotors and other flying Machines and hated having to wait for parts from overseas so we started our own hobby store. We have collected some of the best parts from around the world making them available quickly and at a...
buzzfpv.com.au
Not sure if can use your current charger with that plug configuration, I may look at my chargers to see if it works. The important thing is to remember that you have both LiPo and Ni-mH batteries and when charging either of them, be sure you have your charger set on the right battery type. Bad things will happen otherwise.
Sure I read that you had the quad bound to the transmitter, you should see the reception bars on your transmitter home screen when everything is turned on. If you are seeing nothing in Betaflight on the receiver tab (stick bars moving around when you move them) then it’s not bound.
As
@Wayno52 said earlier, leave the canopy off until everything is set up and run a small fan next to it. And take the cable tie off the receiver, you will struggle to make that fit under the canopy and the cable tie may catch and break the wiring in there.
Pretty sure the black battery tray in the photo is simply unplugged and the frysky battery plugged in it’s place.