hi i have a question about power suply. i converted one and i'm using it to power hub for internet and e-flite blade cx transmitter since i fly mostly indoor. i connected an rj-11 phone jack plug to the side of the transmitter and one to the power suply amd using 100 feet phone cable.

i'm trying to learn how to fly the blade cx so i can move to bigger heli but battery fly time is like 10-15 min a charge (guesstimating here) then i have to wait for battery to charge for about 1.5 hr wich is not enough time to learn for me, yup i need to buy more batteries. so i was thinking can i convert a power suply to give me 7.4 volts so that i can power the blade cx connected with phone cable and if posible to get 7.4 volts from power suply will it be safe to run the heli or will i fry it since i dont know how many amps the power suply will output at 7.4 volts and the li-po 2c battery pack is 800mah wich i dont know what that means. anyway, i connected the heli to 5 volts but did not have enough power to hover it barely wanted to take off.

i read this page (http://reckerclub.tripod.com/id105.html) and saw that by using different resister values the voltage changes so maybe i can get 7.4 v or come close to that value enough power to hover.

i have like 4-5 power suplies cuz i fix comps on the side and could mob one just to power the heli but i dont want to fly it since i dont know much about electricity so i'm hoping i get good advice here.

thanx in advance if anyone can help

p.s. sorry for my english. english is my second language.