You can easily make a connector for the Solo battery so it can be used for any type of gizmo that can work on 4S.
I bought a cheap Solo battery charger on eBay, cut off the end that plugs into the battery as well as about 3 inches or wire, and soldered a male XT-60 connector onto the wire...I have been using Solo batteries on my Pixhawk/DJI F550...works well.
Also, I can now use my normal LIPO charger to charge the battery.
The Solo batteries are pretty cheap these days for what you get...plus I can use the same battery on my F550 as well as the Solo...simplifies things.
Attached is a picture...not great, but you'll get the idea.