This is the Spektrum 6.0V 2150mah NiMH Receiver Battery Pack. Designed
to be the ideal battery pack for use with Spektrum’s AR9100 receiver,
and built to fit easily into nearly any fuselage, the 6.0V, 5-cell
receiver packs from Spektrum offer high capacity Sanyo cells, an
installed EC3 lead for quick and easy usage, and a 6” JR charge lead
for added convenience.