Hi,

Hyperion now launches their new G7 5S, 1800mAh HvLi LiPo, specially designed for drone racing application. An important feature is the missing balance connector. Hyperion has improved on this and come up with an innovative solution. The balance connector is neatly hidden and is now a part of the battery. Taking away the extra wire mess and also saving on weight. The battery includes a detachable JST-XH balance connector extension, which can be used when connecting to a charger and safely removed when flying. Now say Goodbye to hanging Balance connectors and the problems associated with them!

https://hyperion-world.com/en/charger-battery/batteries

I guess the Tattu once had such a model, with detachable balance leads. I bought those because of that feature

My review? I ended up losing them

It's great!
Do any lhs stock on hyperion?