1S lipo has no balance wires (there's nothing to balance, its a single cell)

https://www.ssl-stormerhobbies.com/c...n=THP50001SPRD


I've never tried a 1S, I know I can charge a 2S or better without the balance connection connected, I've not tried storage without balance wires connected.

Empire Hobbies is US distributor and I suggest you try emailing them with this question. They are dealer only, but I've seen them answer questions about the Hyperions chargers on other forums.