ORIGINAL: goirish
If I changed to LiPo's would I need to change the RX. I have a LiPo compatible BEC that I could use. I have a 11.1v LiPo. 1300Mah. Do I need to get something smaller.
You shouldn't have to. Voltage is voltage no matter what the source.
The ONLY difference in a ESC for Nicad/NiMh and Lipo is the cutout voltage, where the engine will quit letting you know it is time to land so you don't over discharge your battery which can ruin a lipo.