Great Planes ElectriFly Equinox 4S/5S Adapter Set FEATURES: Connects 4 and 5 cell LiPo packs wired for Balancing to the Equinox Cell Balancer Labeled for easy identification One year guarantee INCLUDES: One 4S and one 5S adapter for the Equinox LiPo Cell Balancer REQUIRES: Connecting to Cell Balancer and battery