The appropriate load is not determined be the battery, as much as by the requirements (load) of the equipment in the airplane. The "load" is actually in Ohms. One can calculate the needed resistance (Ohms), that prevent 4.8 or 6 volts from pushing a certain number of mA through it.

Just checked the literature with a new Futaba 3004. There is nothing there about resistance.

Years ago I built an external load for a standard voltmeter. From a tip in a magazine, I used 100 Ohms for flight pack. Ayear ago, when comparing voltmeters, I found that mine showed higher voltages than several commercial models. including the cheap Hobbico ESV. I bought an ESV.

BUT I was only using 4 servos on a light, slow .40 size sport plane. You are using more servos, have larger surfaces, etc., and will draw more current. Therefore, you will want to use a larger "load".


Ken Erickson