This series of Dualsky batteries are to upgrade your Ni-Cd receiver and transmitter batteries to Li-Poly batteries! The benifit for using Li-Polys are numerous! Including:
1/2 the wieght of a Ni-Cd pack!
Very low self discharge, no need to charge the night before!
Very High engery to weight ratios! More bang for the buck!
Always use a Li-Poly charger when charger li-Polybatteries.