Unless you are very rigorous with looking after and managing your Lipos, I would also recommend LiFe rather than LiPo in a TX or RX.
I use LiPo but stick to three rules which - so far (ten years plus) - have meant I have not (yet) blown up my hands with the worlds most expensive fire-grenade...
- Never charge your TX/RX LiPo to 100% - get a charger (I use Hyperion) that can stop at a set percentage (I choose 90%)
- Never use it below a safe low voltage (for 3s, I stick to 11.0V). At 11V, change over to another 90% charged LiPo
- Balance check the TX LiPo every few weeks and check the Overall Voltage every week
But don't do as I do - go get a LiFe - much easier...