This Extension Lead is for connecting the Lipo Balance Lead to your charger, making it much easier to connect because the balance lead on the lipo battery is much shorter than the charging lead.Description:The 10S JST-XH plug is used on Dualsky, Align, hexTronik, Flightmax, Zippy, Rhino and many other brands of lipo packs. Ideal for all types of R/C ( Cars, Boats, Planes ) Length: (Approx.) 11.8 inch / 30cm Quantity: 10pcs Package Includes:1 pack of 10S Lipo Balance Wire Extension Lead (10pcs)