Let smoke out of the 130. - HeliFreak
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Old 04-06-2017, 11:06 PM   #1 (permalink)
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Default Let smoke out of the 130.

I'm helping a guy I met recently with setting up his 700X. So far mechanically he seems to be doing good, I'm more there for spartan vortex assistance. He called me today and said that his esc started smoking from the cooling ports. He hasn't installed battery connectors yet, but had it hooked up and powered with a 2s lipos running into the spartan through the datapod, which puts power to the esc, back feeding the esc. I suspect this caused the failure but I can't go look at it for myself. Can anyone shed some light on this? Can you run a 2s lipo straight into the fbl unit and still run the internal bec?
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Old 04-07-2017, 06:13 AM   #2 (permalink)
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No, you cannot back feed the internal BEC with a 2S LiPo. This fried the BEC.
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Old 04-07-2017, 11:59 AM   #3 (permalink)
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Does the same happen with a Ultraguard?

I ran a HW130 with an Ultraguard without issues. Never used a 2s LiPo.
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Old 04-07-2017, 03:21 PM   #4 (permalink)
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The Ultra-Guard works differently from a 2S lipo. The Ultra-Guard will only arm itself if the onboard voltage is below a certain level. It also charges itself while in-flight.
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