HiModel 4s-8s 200 amp esc

[Punisher 67]

Yes there is , check out the picture below

[Ub Hauled]

Thanks Peter.

[785boats]

Thanks Pete.
And so simple too.
So I assume from this that I may need to replace the capacitors on the ESC in question???

Paul.

[ozzie-crawl]

have been running these esc's for awhile with good results although havent tried 8s.have data logged a few boats running them and one boat was drawing 170 amps peak with about 130 constant and the speedie got warm but not overly for wat it was doing plus the esc wasnt water cooled (testing to see wat they could take) have been running one in my cat for awhile and havent had any problems, cat runs 7xl 4s also have had running blackjack motor on 6s with no problems
paul, i think some of the earlier models had a diffrent program chip wich somtimes stopps working they also changed the fets. will ask geoff if he has some left as he brought 10 not long ago cheers scott

[Punisher 67]

Not a problem guys , hey what are we all here for but to help each other.....

Paul I don't know if that is your problem would be nice if it was.....

[Jetbill]

anyone know where these can be bought in the U.S?

[planezero]

here

[ReddyWatts]

For a USA site to sell these and make a decent profit and be competitive, they would probably need to sell them with no warranty. ha

[planezero]

Oops didnt even see it was China.
They accept Paypal and for that price how wrong can you go ??

[ReddyWatts]

I agree planezero. Ordered one last night.

[ReddyWatts]

Yes there is , check out the picture below

Wonder why someone has not designed a bullet connector with an insulated ring on the end that has a 50 ohm resistor connecting the parts? It would stop the sparking when you connected the positive lead slowly with no dangling parts. Cheap answer to blowing expensive controllers on power up.???

Or better yet, design an add on part that slides inside the bullet connector?

[Ub Hauled]

Reddy, some ESCs have internal versions of the "spark arrest"... not sure if it works or not...

[ReddyWatts]

All of mine spark heavily when connected from the inrush. Especially the HV controllers. Anything to slow down the charge rate of the caps. I like the 50 ohm resister idea that is shorted out after the bullet is connected.

[planezero]

Difference 7S OPTO / 8S BEC ?

I agree planezero. Ordered one last night.

I also paid a mister Wang Xuebin $185,49 last night for three ESCs
In their email they say they are the largest RC Electric supplier in China...

I bought them with BEC (even though I dont intend to use the BEC) cause they are specced to go up to 8S, and want to build a twin drive cat and might go up to 8S.
The other 200A OPTO model without BEC is only specced to go up to 7S.
I wonder why that is ???
Usually with BEC its specced lower to guarantee an output somewhere around 5V.

Any ideas why this is the other way around? Older model perhaps ?

[ReddyWatts]

They look like completely different controllers, this being the newer one. I have been hoping someone would test it on 8s with BEC.