E-Flite EFLB21003S Blade 400 11.1v 2100Mah LiPoly Cell 20C 3S

-flite High-Power Lithium Polymer batteries offer an excellent blend of weight, power and performance. Available in a wide variety of capacities and voltages, theres a battery perfect for almost any application from indoor slow flyer to large-scale sport and aerobatic airplane models, as well as micro to mid-sized helicopter models.