IMO with any of the micro helis ditch the supplied NIMH or Nicad batt and get a 7.2V lipo. Something like a 1100MAH thunder power. Typically you dont need a regulator for a 7.2 V lipo. I used one on my micro heli I had the GWS dragonfly. Although a fun heli if its your first they are squirrly. Good luck