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Old Mar 27, 2014, 04:56 AM
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United States, MI, Ann Arbor Charter Township
Joined Mar 2012
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Align RCE-BL35X Problems

Here we go again, incredible frustration time.
This time on a *new* Align esc (bought on eBay but as new).

Heli just simply dropped out of the air after flying for 5 minutes
Oddly and at 80% throttle only damage was a top pitch link, not sure how I managed
that save.

Upon crashing the esc was continually rebooting, starting up over& over again and restarting.
This sucks, maybe I have a bad ESC/BEC.

I do not have any connection problems those are all solid
and I can only get it to happen at high throttle, it just goes out randomly.

But will not do it when not spooled up no matter what I do to try to get it to fail
when not flying.

ENtire esc and bec reboot.

Same result as if I short the 6V output on the BEC.
everything shuts down including RX and then comes back and ESC re-arms.

But pulling on tapping (very hard) on all items looking for a short does not
get it to happen when it is not flying.

Also pitch pumping it in flight (drawing more current from the battery
or slamming the servos (getting them to draw more current) also
does not induce the problem.
Very frustrating.
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Old Mar 29, 2014, 06:35 PM
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United States, MI, Ann Arbor Charter Township
Joined Mar 2012
1,168 Posts
Not much love here..
Looks like the Align BEC is giving out,
Not sure if this is normal or if I have a bad ESC/BEC.
Going to try a separate 5V BEC and disconnect the Align built-in BEC
But still use it for the Motor ESC and see what that does.
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Old Mar 30, 2014, 03:07 PM
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United States, MI, Ann Arbor Charter Township
Joined Mar 2012
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Works fine with external 5V BEC.
I'm not sure if I have a bad ESC or if I'm asking it too much.
Just 4 servos and a piezo/cheap gyro. and a FLysky RX.
Pretty much the normal load.
All servos and gyro and RX are rated for 6V operation.
I'll need to run up the esc wit ha test load and see if it provides 3Amps reliably.
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Old Mar 30, 2014, 05:01 PM
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Joined Oct 2008
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I've seen this recently albeit on a plank! To be precise a PA Bandit with the supplied esc, so not poor quality gear either. The problem turned out not to be the esc at all, but the batteries in use at the time. The packs in question were Turnigy Nanotech batteries 65C discharge. My pals and I have all had similar issues with these packs, they fall way short of the advertising claims with very poor power density. New packs sorted the problems, if I were you I'd look at your batteries first.
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Old Mar 31, 2014, 07:13 AM
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United States, MI, Ann Arbor Charter Township
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Good advice and thanks, as some of my packs are very low end turnigy 20C and 30C packs.
However I had the same exact issues with some Eflite brand new 30C packs.
And switching to the external 5V BEC fixed it.
I'll need to hang a 3 amp test load on that Align ESC and see if it holds or not.
Certainly could be an intermittently shorting servo or gyro or RX as well but going to the external 5V 5A esc has it flying for now.
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Old Mar 31, 2014, 07:14 AM
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I'm not satisfied with my solution as it gives up the higher performance 6V BEC built into the Align product.
I've just downgraded performance.
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