I am going through the throws of re-evaluating my RX battery selection and would love some advice. I fly sport nitro planes with the upper end being 120 four stroke sized with seven HS-475 servos. I do have a number of digital servos but, haven't really found a good excuse to use them. I have all but converted everyting to 2.4 (combination of XPS and the new JR stuff) At this time all of my RX flight packs are 1100 mah (AA) 6 volt. I do use dedicated 4.8 volt packs for mechanical retracts and such. I experimented with a Seagull Dual Ace where I used two independently switched 1100 mah 6v packs each connecting to the RX and it worked perfectly without issues and without any additional hassles - good reduncancy with no down side (except cost). I am now putting my second GP RV-4 arf together and moving toward using two independent 6v packs but I am not sure about the capacity. I prefer NiCd's but very much open to other ideas. I don't want to buy the newest, highest capacity cells and then get a short life or have to baby them or whatever. I have considered the slightly larger 1400 mah 6v packs but I know nothing about their anticipated longevity. I also think that the 1100 mah packs have plenty of capacity for my needs - especially when placed in parallel.

This seems like a fun engineering issue and it may be that there is no bad answer. I am completely open to being influenced and would appreciate your sage advice.

Howard