Low battery alert

A

Adrian082

Member
I ordered drone 8807. I read something about low battery and I dont know is it true. Namely when battery is low (empty) in flying process drone just kills motors and falls on ground. Is it true or not?
 
True! If the voltage drops low enough. I learned the hard way and dropped one out of the air one time.
 
Duh? This reminded me about a friend that jumped out of airplanes without a parachute. Of course, the planes were usually on the ground. Then one day, he was in a plane at 5,000 feet and was skydiving. He made that fatal mistake of jumping out of the plane without a parachute. Needless to say that he was surprised at this mistake just at the time he was supposed to pull the rip cord. Another Duh!
 
When you're flying the LEDs on your quadcopter will be solid. When they start blinking rapidly, it's telling you that the battery has reached the level where u need to land
 
Ah, seeing those LEDs is the challenge. If you're at altitude, say 400 feet (to remain legal) seeing those LEDs blinking is a feat for Superman, especially in daytime. How many, though, fly their quads after dark consumes the sky?
 
Too bad quads run on electricity. I was designing a water powered quad. The problem was getting a 50 gallon water tank to stay on top of the quad. I finally figured that out. The other problem was getting the quad to lift it. If I figure that out, I'll let everyone know!
 
I imagine it could be done. The issue would be to keep the motors running while trying to fire up the last one. Once going you'd need to refill the fuel tanks. Then you'd still need a battery for the electronics. I saw one design on YouTube that used a small 2 cycle gas engine with variable speed belts running to each rotor The quad about 25 pounds in all. The issue with it was the ESC for guidance. Another idea is having a centralized hub motor that turned a Dynamo (12 volt) and the power distributed to 4 electric motors via the ESC. A centralized fuel tank would balance out the quad. It would not be too large and could meet the under 55 lb. weight limit.
 
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With my Naza system, it will start blinking well before my battery voltage meter is activated. I have flown for over 21 minutes without my voltage meter being activated but the Naza blinks red under acceleration. Come to think of it, could that be why it keeps on dropping out of the sky :)
 
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