Mate bought a mini r/c helicopter. BOGOF deal, about three years ago, wasn't impressed so he gave me one, still in box, unopened. Had a play yesterday. Set of AA's in transmitter, poor connections, ponce about, OK. Charge Li-Po in helo, coo!. Whizzy whizzy. No take off. Bugger. Am I right in assuming the Li-Po's past it's sell by date? I can get one for a fiver or so, or is it not worth messing with? Oh, and on "full" chat, it sits on the floor going in circles. Rudder trim wheel doesn't cure it completely, is there any adjustment inside the handset? It's IR, not R/C.