Looking for a reliable ESC

[Brian]

Hi all, I';m looking for a reliable easy to use (No flashing required) 40A ESC for my Hex.

Its got to be able to run my 4215 630KV 22Pole motors with 15" props.

Afro';s didn';t work, Unmanned 30A';s were ok for a few flights but then went all Pete tong.

Balders has suggested 40A Opto RCTimer ones, but said they need flashing. I have no spare money as I';m out of work waiting for the job centre';s New Enterprise Allowance scheme to catch up to me (they have already approved my business idea, and I have to wait for a mentor before I hand over my business plan) They have to be dole money friendly!!

Thanks for your time and help,
Brian

[teslahed]

http://www.rctimer.com/product_850.html

These RCtimer 40 amp optos do not require flashing - they come with SimonK on there already.

[Brian]

Balders said he did flash them before they were reliable? Unless I misread him (in the chat room)

Brian

[teslahed]

I have heard some of the early batches of RCtimer ESCs had to be reflashed because they screwed it up at the factory and put the wrong firmware on them.

I can only hope this is fixed now. But it';s a possibility wherever you get your ESCs from.

I think it was Ian (smeagol) on the forums who had serious issues with some RCtimer ESCs - they were dead on arrival and only worked after being reflashed.

[Brian]

Ok, whats the difference between these two ESC';s? Which would be more reliable?

http://www.rctimer.com/product_850.html

http://www.rctimer.com/product_781.html

My confidence is blown on ESC';s at the moment, it also doesn';t help being skint lol!!

Thanks for your help mate,
Brian

[Balders]

product 781 had a built in BEC.  The other ones dont.  I have the opto isolated (non bec) versions and other than teething troubles (had to reflash the lot of them) they have been faultless.

I borrowed a flash tool off a friendly forum member :)

[teslahed]

OPTO ESCs dont have a built in BEC so they wont supply you with 5 volts.

Since you are using a separate high power UBEC i would suggest going with the OPTO ESCs. You wont be using the BECs built in to the non Opto ESCs.

OPTO ESCs should be more reliable and less noisy than non OPTOs.

[Brian]

These ones then?
http://www.rctimer.com/product_850.html

Would I definitely have to flash them?
Brian

[teslahed]

You probably wouldn';t have to flash them - unless something went wrong at the factory. Then reflashing them might solve the issue.

[fruitsalad]

i use the h/k  blue series and f series...
if you need escs flashed i would gladly do them for you..

[Britishguy]

+1 id flash them for you mate

[dazza22]

lot answer and all wright .
I have been using hobbywing skywalker in my 450 sized quad for nearly 2years without problem. now sure how many hours but ALOT !

my other 2 frames are using HK f30 and HKf20 flashed with simonk but only got low hours on them at the minute ,but up to now (touch wood ) fine

[Brian]

I';m going to get the 40A OPTO';s from RCTimer due to the price, and I know that if they need it there a bunch of you good guys here that will flash them if they need it!! And I';d missed this before, but they seem to recommend these ESC';s for the motors which I bought.

Thanks guys,
Brian

[sevet]

another thing is that the opto supports upto 6S and bigger burst amp