Sidewayskiwi
Got a Flysky I6 trans/receiver
Converted my big profile plane to 6S with new big motor as a test bed for another build 
Using 2 x 2200Mah 3S in series 
Red Brick 50A esc-new-
With BEC wire 
Programme up the new esc for 6S etc 
Boy it's got some go 
Touch the sticks and receiver shuts down no red link/sync light
Take the series connector out and plug un 3S by itself receiver fires back up again and controls work 
But not on 6S 
Anyone struck this? 
Fixed this? 
Or know the the - - - - is going on? 
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Sterling101
Could be a dicky series connector maybe?
Whoever said nothing is impossible had obviously never tried slamming a revolving door...
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Sidewayskiwi
Sterling101 wrote:
Could be a dicky series connector maybe?

That is something I'd never thought of
Cheers
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Sterling101
Just seems a little odd it works without it there but not with - could be a dodgy connection that's not up to passing the current through so it'll power up but as soon as it gets a load it craps out and resets 👍
Whoever said nothing is impossible had obviously never tried slamming a revolving door...
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solentlife
LEAVE series connector in and connect ONE 3S and see if works ... if yes ... disconnect the #s and put into the other connector ... see if works ... 

The other matter may be that your ESC is not suitable for 6S ??  Most 50A ESC's I know are only up to 4S ..... 

Its also possible that if its a linear BEC - that the 6S is too much for it and overheating ?
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Sidewayskiwi
solentlife wrote:
LEAVE series connector in and connect ONE 3S and see if works ... if yes ... disconnect the #s and put into the other connector ... see if works ... 

The other matter may be that your ESC is not suitable for 6S ??  Most 50A ESC's I know are only up to 4S ..... 

Its also possible that if its a linear BEC - that the 6S is too much for it and overheating ?

Yea starting to think this but did all my test rig thrust/wattage runs on same esc and receiver no issues 
Did all the beep programming of the esc on 6S also 
its a real head scratcher
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Sidewayskiwi
Here's the pics of the esc and tech print out 
Instructions /beep programming start at 7S and the motor/esc/receiver has run at 6S in testing
Linear BEC - - never heard of them but looking at the tech printout Solentlife you maybe onto something as the BEC at 50a is listed at 2-3S
Never seen this before
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Sidewayskiwi
A vid of the problem
Full noise OK all flight controls 
As I reduce throttle levels the receiver gets sketchier and sketchier until near or around shutoff the receiver shuts down completely 
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solentlife
Linear BEC is purely a resistive heat producing reducer ... and the more volts input to it - the hotter it has to run to get it down to 5V .... if you push the volts in too high - it shuts down or just basically burns out.

A Switch mode BEC ... commonly termed SBEC or uBEC uses fast switching on / off of the power to create a net result of required voltage. It's like a pulse ... and is why you cannot have two Switch Mode BEC's connected same time - but you can have as many Linear as you like as they don't pulse.

If your BEC says 2-3S .... then your 6S is overloading it anyway - regardless of Linear or Switch mode. Its basically shutting down.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Wildthing
Here's the pics of the esc and tech print out 
Instructions /beep programming start at 7S and the motor/esc/receiver has run at 6S in testing
Linear BEC - - never heard of them but looking at the tech printout Solentlife you maybe onto something as the BEC at 50a is listed at 2-3S
Never seen this before

Looking at your spec sheet there are two 50A esc's, the one with a bec is only rated for 2 to 3S and the other has no bec but is rated for 2 to 7S. 
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solentlife
The ESC in the picture earlier is very similar to my ESC's without BEC ... they have the Heat fins as that has.

But there must be power to RX - so there must be BEC .... but if you are running a 2 - 3S ESC (never heard of an ESC having different cell count for ESC and another for BEC .... ) - then you are pushing the ESC and BEC far past its max limit.

Just opened up a couple of models I have I know fitted with Red Brick 50A ESC's ...... both are 2 - 3S only ... 

Even my Red Brick 60A is only 4S max. My 70A and up are 6S rated.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Sidewayskiwi
OK HERE'S THE TECH
Red Brick ESC's have a different cell count to BEC supply in some models and no BEC's in others 
Why??? 
Who the F--- Knows 
Yes my RedBrick ESC can handle up to 7S (confirmed in the beep codes in programming and instructions) but BEC is clipped at 2-3S -------
The BEC is Linear explaining why i can run it on a test rig with only the motor (at any power setting) and only above 1/2 Throttle with flight controls plugged in --all to do with available voltage under heavy draw allowing BEC to step down the available voltage after motor draw to @5v
Manufacturer/sellers advice now ive ran 6S through the BEC is to dispose of ESC 
Lesson learnt RedBrick will not be getting anymore of my hard earnt cash

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Wildthing
OK HERE'S THE TECH
Red Brick ESC's have a different cell count to BEC supply in some models and no BEC's in others 
Why??? 
Who the F--- Knows 
Yes my RedBrick ESC can handle up to 7S (confirmed in the beep codes in programming and instructions) but BEC is clipped at 2-3S -------
The BEC is Linear explaining why i can run it on a test rig with only the motor (at any power setting) and only above 1/2 Throttle with flight controls plugged in --all to do with available voltage under heavy draw allowing BEC to step down the available voltage after motor draw to @5v
Manufacturer/sellers advice now ive ran 6S through the BEC is to dispose of ESC 
Lesson learnt RedBrick will not be getting anymore of my hard earnt cash



By chance if you have an external bec wire it in and see what happens, nothing to lose except some time soldering 🙂 
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solentlife
Sorry to say this ... but BEEP codes are NOT ESC dependent ... they are made by purely the cell count based on voltage and motors detection. 
Second - inbuilt BEC's are rated for the Cell count of the ESC as a whole and not different. It makes no sense for an ESC to be 6S capable and its BEC to be only 3S .... 

Please upload a photo of the label on your 50A ESC .... I bet it is similar as this : Which is ONLY for 2 - 3S Lipo use both ESC and BEC

Red Brick 50A 5V 4A 2 - 3 cell.jpg 

If not please upload .... 

The advice to wire in an external BEC is actually best advice anyway ... 

How :

1. Unplug ESC Rx lead and remove RED wire pin from plug ... (I usually tape it back out of the way so I can reconnect later if ESC used in a different model).
2. Solder external BEC wires to the battery plug of the ESC so they are parallel connected.
3. Plug in BEC Rx lead to any spare Rx channel
4. Plug in ESC Rx lead to throttle channel as normal.

But TBH - I strongly advise to get ESC's that are actually designed and labelled to handle the 6S you are using ... because BEEP codes are not valid confirmation of ESC capability.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Wildthing
solentlife wrote:
Sorry to say this ... but BEEP codes are NOT ESC dependent ... they are made by purely the cell count based on voltage and motors detection. 
Second - inbuilt BEC's are rated for the Cell count of the ESC as a whole and not different. It makes no sense for an ESC to be 6S capable and its BEC to be only 3S .... 

Please upload a photo of the label on your 50A ESC .... I bet it is similar as this : Which is ONLY for 2 - 3S Lipo use both ESC and BEC

  

If not please upload .... 

The advice to wire in an external BEC is actually best advice anyway ... 

How :

1. Unplug ESC Rx lead and remove RED wire pin from plug ... (I usually tape it back out of the way so I can reconnect later if ESC used in a different model).
2. Solder external BEC wires to the battery plug of the ESC so they are parallel connected.
3. Plug in BEC Rx lead to any spare Rx channel
4. Plug in ESC Rx lead to throttle channel as normal.

But TBH - I strongly advise to get ESC's that are actually designed and labelled to handle the 6S you are using ... because BEEP codes are not valid confirmation of ESC capability.


Actually very lucky he didn't have a little fireworks show. 
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