Kero ignition really needs Li-Po or Li-fe. A good NiMh pack which is topped up just before you fly the first flight will do OK, but in cool weather you'll need to charge every other flight. Long leads are also a problem as you are saying, even 14 swg wire I don't go over 20cm-8". Most of my models I have with the Li-Po next to the ECU, so I can plug it into the unit directly. The 2500 Li-Po JetCat supply I shortern the wire as much as possible, but mainly use Thunderpower or Graupner 2s packs...all the way to 5400 mAh. I use the car buggy 2s packs in hard cases where possible.

Dave Wilshere