Today I'm planning to do APM flights in the darkness. I added some led strip lights red,green and white. Every stripe has 18 leds. Power consumption is about 60mAh/10minutes. So my (11.1V/250mAh) NAV-light lipo gives about 30-40 minutes of very bright navigation light time. It is also very interesting to see how good the GPS will hold its position because there is a lot of aurora borealis in the…