Originally Posted by
GerryH
LEDs usually take low voltage in the 2-3v range, in order to get them to run off higher voltages, a resistor is used. Not knowing what type of light bar you have or how the previous owner connected it, it's hard to say what to do.
I suspect there's already resistors somewhere on your circuit. They might be set up for battery power and that's why they don't work off your receiver. But your receiver isn't made for turning devices on and off from the + and -. You need something like the RC Lights 5090 Electronic Power Switch.
You have them connected to the ESC plugs on the battery side? Unusual that the voltage would drop that much. You might have a bad battery.
The previous owner said he only wired it up once and that was straight to the battery. I now soldered them to the ESC plugs on the battery side, and i don't think it's a bad battery, because it did it with multiple batteries. I should have mentioned that it was already fairly dim on 2s, but much brighter when i tested it on 3s.
Originally Posted by
Dave H
Just to clarify, which pins did you try on the receiver? Negative (black) to signal (white for many brands) won't give a constant voltage, but negative to positive (usually red) should give 5 to 6 volts with most electric powered RCs.
And the esc plugs, the ones going to the battery?
yes, the ones going to the battery. That's just a temporary solution while i figure something else out. I soldered a receiver plug to the bar (red to red, black to black) and plugged it in to the corresponding pins. It looks sort of like a vanquish bar, but I'm not really sure.