Only the type I batteries take AA cells, all the others take 4/5 AA's. Tom > > Also, stop by your local R/C hobby center, NiMH 9.6v 2000mah packs > consisting of 8 tabbed AA cells sell for ~US$22-25 around here. Since a > 12v Duo pack needs 10 cells you'd need two packs though. Perhaps 12v R/C > packs (10 cell) are available . . . ? > > hth, > > Dan K