Cappy delighted you have made the right decision and just to add a little extra convincing consider this: Walk into any LHS in the country that is heavy into RC cars and ask to see the battery holders, you will be directed to a large stock of cell holders for both Tx and Rx's. HMMMM, I wonder why since most of these surface radios come with them already. There simply is only one answer and that is they constantly fail! Otherwise that dealer would not have that large supply. Not a big deal with a car, but airplanes well. Always use hardwired packs in aircraft both Rx and Tx.

John