Need Help with newest 180A SeaKings

[donhuff]

I got one of these newest Seaking 180s, the ones with the extra 4 caps, about a month ago. I finally got around to using it a couple of weeks ago, and immediately had problems.
Then with a race in south Georgia coming up this past weekend, I ordered 2 more thinking that maybe I just got a bad one. But in racing, you have to have spares. So I rigged out the 2 new ones as usual, and once we got to the race, I tried one in practice only to find out that it does the exact same thing. And the third one does it also!

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After launching and getting up on plane, I punch the throttle and bout half way down the back straight, it shuts off. Release the throttle then get right back on it and it goes maybe a couple hundred feet and shuts off again. I can actually keep the boat running and at speed by rapidly letting off and getting back on it.

Before you say LVC, let me say that I have tried EVERY LVC setting, 4 different motors, 4 different battery sets, 3 different boats, and at least 6 different props ranging from so small that it would barely get on plane to large enough that it SHOULD have knocked off earlier. But it usually takes about the same amount of TIME.

They will run at half throttle just fine, but at WOT they stop.

Also let me say that I have 5 or 6 other 180 seakings, and 4 120A SKs, and they all work great. So it's not like I don't know how to program them, unless they have changed something.

[Mxkid261]

Are you running Auto-cell calculate? Or do you have the cell count manually selected? I have 4 of the new v3's and the one in my 32" rivercat is getting worked to its max, if I don't manually select the cell count it will do funky things like cut out.

[NativePaul]

This is me not saying it's the LVC.

[donhuff]

MXkid,

I've tried it both ways, with 4s packs in a P, and 2 s packs in an N. Is this one (with 6 caps on the power wires) the version 3? I've not been doing FE but for 1 1/2 years, so I do not know a lot about any of the older stuff.

Paul,

That's what I thought. I tried EVERY setting and several different packs to try and nail down what I was doing wrong. Does the same thing no matter what I have tried.

I can take this ESC out, and put one of my "two cap" model 180As in, and it works fine. I checked both to see if I had one set different from the other. But both had the same settings.

[Mxkid261]

What kind of packs are you running? What is their discharge rate? Any of my 180a esc's will go into LVC with anything less than like a 50c battery unless LVC is turned off. The v3's seem to be alot more sensitive than the older ones

[donhuff]

Roaring Top 60C (3 different sets) 4s2p and a TP 4070-2200....TP 4050-2390.......TP 3650-3080 on 2s2p.....Leopard 4074-2200

I have run these same setups with some zippy 45C packs, and my older 180A SKs

[donhuff]

Do ya'll have this newest version that I'm describing with the SIX caps on the wires. Is this the V3?

[Mxkid261]

Do ya'll have this newest version that I'm describing with the SIX caps on the wires. Is this the V3?

Yes that is the v3. Like I said I have 4 of them and the only real problem I've ever had with them is from user abuse over-amping it which turned into a smoke show

[donhuff]

Hummm.

I wonder what I'm doing wrong then. I just went out to the shop and checked for the third time, to make sure I had them on the 4 cell setting, and they all were.

Then I Load tested my batteries and the lowest voltage I saw was 14.2V This was dropping from 99% charge to 70% in about 30-45 seconds. So that should be as much or worst than when they were in the boat.

[longballlumber]

Just grasping at straws...

I assume that your using the BEC function to power the RX (NO separate RX Pack). I would try a separate stand alone RX pack. Make sure you disconnect the power line (red wire) between speed control and receiver. I don't really have a reason why that would cause your issue, but it eliminates the BEC function as a cause.

Later,
Mike

[donhuff]

Yep, tried that too!

Look close in the picture in my first post and you can see tape holding the red wire back.

[Mxkid261]

Do you have another receiver and transmitter to try? Might as well give it a shot if you do

[donhuff]

Already tried it in 3 different boats.

[donhuff]

I just rigged up a test bench using a leopard 36x50-2090 motor, 4s pack, and I used APC pylon racing airplane props for the load. with a 7.5x5 it will run till I turn it off. With an 8.5X8, it runs for about 5-6 seconds then shuts off. The green LED is flashing indicating high temp cut off. But I can put my fingers on it and hold them there all day! So it aint really hot. The motor gets hot even with the smaller prop since I do not have water running to it. 142 F was the highest I saw, but I did not run it but maybe 10 to 15 seconds.
And just like when on the water, if I let off of the throttle and get right back on it, it does run again, but only half as long. If it was really hot, it should take a little to cool off, don't ya think.

[fweasel]

You're one hell of a troubleshooter and I think it's fair to say you've spent enough time on this ESC and it should be replaced by the seller you purchased it from.