RE: how long does your futaba 9cap battery last?
I made my own 1850 mah nimh transmitter battery pack with some parts from Radical RC (solder tabs and shrink wrap) and batteries from Walmart. Total cost was about $21.00. I use my Ace smart charger to charge it, and the battery lasts longer than I do on any given day at the field! Last time I was at Walmart I noticed the batteries are now rated at 2200 mah!!
I took the 8 AA batteries from my transmitter and I made two 700 Mah packs from them!!!