I have used NiCad batteries since day one of entering RC flying. I now have my first jet, a Reaction 54 with a JetCat P-70 turbine. The turbine came with a JetCat 1250 mah Nicad, 6 cell, 7.4 volt battery and I am using a 5 cell, 1700mah Nicad, 6 volt battery with a MiniHobby 5.1 voltage regulator for the 8 servos in the jet. My JetCat manual states that 1250mah is good for 3 flights, but suggest that I recharge the batteries for the turbine after every flight. I would like to use batteries that will give me several flights between charging. I am considering Lithium batteries, but I am not sure which lithium to use...Poly, ion...and which brand.....Fromeco, Durilite..... What do you suggest. Thanks.