RE: JR 8711 SERVOS CAN THEY CREATE RADIO PROBLEMS
Gotta disagree with Raf and Ricardo. You have to check the specs on the packs you are buying. For the price of a JR or Futaba labeled high capacity pack, you can buy a better quality, lower impedance Ni-mh pack and have change leftover. I have some Ni-Mh 4/5A size cells that can deliver 30 amps no problem. You are also putting these packs in parallel which double your capacity and halves your impedance. Why would they make car battery packs in Ni-Mh chemistry to run a big electric motor if they can't deliver the current ? The answer is they can. You just have to choose the right cells.
Marty