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06-24-2011, 11:02 PM | #1 |
Rock Stacker Join Date: Jun 2008 Location: Columbia SC
Posts: 61
| No castle bec for a 7.4v servo? I looked for this for quite awhile, so I apologize if this has been addressed before. Do the newer high-voltage servos that operate at 7.4 volts still need to be run though a Castle 10 amp BEC? If so, why is that? Can't ya just wire the power leads right up to the ESC power leads and plug the signal wire into the receiver? Thanks, JTL |
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06-24-2011, 11:04 PM | #2 |
Rock Stacker Join Date: Jun 2008 Location: Columbia SC
Posts: 61
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Forgot to say that I run only two cell lipos for a 7.4 voltage. I can see why you would not want it to do this with a 3S.
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06-25-2011, 06:20 AM | #3 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
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06-25-2011, 12:59 PM | #4 | |
RCC Addict Join Date: Jul 2009 Location: reelsville
Posts: 1,871
| Quote:
So hook it up and run it, it'll be fine as long as you stick with 2s. The voltage is only 8.4 for the first little bit anyways then drops. I run 3s and set my BEC to 8.4 so I can get the full 8.4 for my entire run. It's kinda a waste that so many people set thier stuff to 7.4 instead of 8.4, that's free power that just gets lost. | |
06-26-2011, 12:06 AM | #5 |
Rock Stacker Join Date: Jun 2008 Location: Columbia SC
Posts: 61
| Does your servo not over heat at that setting? Which one(s) do you have?
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06-26-2011, 07:14 AM | #6 | |
RCC Addict Join Date: Oct 2008 Location: Tyler, TX
Posts: 1,619
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06-27-2011, 12:24 AM | #7 |
RCC Addict Join Date: Jul 2009 Location: reelsville
Posts: 1,871
| Why would it overheat running exactly how it's designed to be ran? But anyways no, 7980 and gets barely warm after a hard course. My old 8711 in the same truck and my previous build would almost burn you after every course (at 6.0 or 6.5V). Also running a cheap Hobbico servo (7.4V and 4?? oz-in rated) and 3racing winch at 8.4V threw the BEC on my SCX. Two LNC's that I maintain running 7950's at 8.4V also, no heat issue's on any of these four servo's.
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06-28-2011, 10:10 PM | #8 |
Rock Stacker Join Date: Jun 2008 Location: Columbia SC
Posts: 61
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Hooked the power leads to my ESC leads. Works great. Before this I was testing the servo (7950) a bit on some rocks with it just plugged in the receiver temporarily. Ran it for just a few minuets. Maybe 10 or 15. It seemed hotter than it should have been at that point. I'm good with electronics in general, so I was concerned if it heats up this much at 6V would it go thermal at 7.4 or 8.4? |
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