RE: lipo transmitter batt
A 2000 mAh 11.3 volt LiPo won't last as long as a
2000 mAh 9.8 volt NiMH. So you need to charge more often.
Additionally, LiPos have a steep discharge curve.
This means they hold their voltage for a long time and drop off suddenly.
Taking loaded readings won't help as much.
I use 2000 mAh NiMhs and charge before each flying session.
I will do the same when I switch over to LiFes.
Why take the chance on a crash because I was to lazy to charge?
I hope this helps,
KW_Counter