I'm just finishing off my FT3D, when I encountered a slight problem. I was going to use a GT2215/09 m0tor from one of my C-packs with one of those yellow no name ESCs that you can buy for about $3. It worked fine with a 3S battery, but with a 4S one, it kept losing sync at full throttle. I then tried a Surpass C2814 -910kv motor with the same ESC, which seems to work perfectly with a 4S battery and the same propeller.
A little digging around shows that many of the cheaper ESCs are only rated for 2S-3S. can anybody tell me why that is? Given that my motor now seems to work OK with that ESC, are there any impending disasters waiting to get me?
Another thing that I noticed with ESCs is that the more cells you use in the battery, the lower their rating is regarding the number of servos recommended. I've seen one that went something like 2S - 4 servos, 3S - 3 servos, 4S - 2 servos. Can anybody explain why? It sounds counter intuitive to me.
Am I going to have to spend $15 on a decent ESC or are there any better options for 4S and 30 amps?
A little digging around shows that many of the cheaper ESCs are only rated for 2S-3S. can anybody tell me why that is? Given that my motor now seems to work OK with that ESC, are there any impending disasters waiting to get me?
Another thing that I noticed with ESCs is that the more cells you use in the battery, the lower their rating is regarding the number of servos recommended. I've seen one that went something like 2S - 4 servos, 3S - 3 servos, 4S - 2 servos. Can anybody explain why? It sounds counter intuitive to me.
Am I going to have to spend $15 on a decent ESC or are there any better options for 4S and 30 amps?