RE: Spektrum DX-7
OK, I have a battery pack question....I'd like to use this pack with the Spektrum radio.
It's a 5-cell, 2700ma nimh reciever pack. Sanyo cells. My charger measures the ma going in when charging, and it indicated about 2650ma of charge. When discharged to test the capacity with a 500ma load, the capacity comes out to about 2160ma. When discharged under a 250ma load, the capacity is about 2575ma. I do not think the ma going "in" is relevant, as long as it is consistant. The Supertest has a 125ma setting but I've not tried that yet.
So, is the difference in capacity at the different discharge values a result of internal resistance?? I just can't imagine what else it might be....
Flew the Spektrum today with an 1100ma four cell pack. Four standard servos. Started with a full charge, 5.2 volts and after two flights the loaded airborne pack read 4.8 volts. I gave it a charge and flew again, no issues. The flights were about 10 to 12 minutes each....
Randy