Believe the Losi lipo uses TP type balance connector. They have that little clip on on the balance connector. Pin spacing is supposed to be diff, 2mm versus 2.5mm for JST type connector.
I don't see one listed on Hobbypartz, but they've got to have something available. Sure you're not the first that's needed to charge a TP/FP lipo with your charger.
If they don't have something, there's somebody else's adapter board prob fits and works. Just need to find out whose. I'd expect Hobbypartz to know.