RE: LIFE battery charging in the plane question
I bought my balance extender from wrong way rc. The extender connects to the battery on one end and the other end is a balance jack that mounts on the fuse just like a charge jack on a switch. So you can just connect the chargers balance board to this jack via a cable they sell to charge or connect to the balance jack and the usual charge jack to fast charge. Still able to do both from outside the plane. I believe the balance extension with fuse mount was $9 and the adapter that runs from the balance board to the fuse mount was $9. At $18 not the cheapest alternative but definitely seems like a good solution and couldn't be any simpler.