Swordfish 300 esc, adding cap bank??

[fidelity101]

That makes sense. The Swordfish 300A ESC does not measure ripple current and I do not have a tool for measuring such. I am putting this in a new boat anyway, since my hull was driven over by my friend, so adding a capacitor bank seems like an easy task. Do you not like this design? http://www.offshoreelectrics.com/pro...230007&cat=136

It's hifei's design for their ESC...but I can't find that many reviews on it. The copper plate it uses seems like a better/easier way of connecting all the cables together.

[fidelity101]

I added the cap bank before attempting 10S operation just to be on the safe side. The ESC is HUGE by itself, makes for a very interesting installation when adding the HIFEI dual connector cap bank system OSE sells. I'll have to post a picture to show my installation once the glue dries, but I had to build a little shelf for the ESC as the wires come out of the bottom. I moved the cap bank between the esc and motor and then used 8 gauge wire out of the cap bank and into each battery...4" leads. I used a small piece of EPO foam to lift the cap bank off the hull floor and I coated the cap bank with two thick layers of Corrosion X in the unlikely event that it gets exposed to water. I figure the slight elevation off the floor plus the Corrosion X will be good preventative measures.

[fidelity101]

Does anyone know what program settings I should use on the Swordfish? I have it set to 10S, auto timing and LVC of 3.2v/cell but I'm wondering if I need to change something else. When I'm fully stopped and I advance to full throttle, it slowly starts up instead of jumping forward. I'm sure this is better on the batteries but I'd like something in between a jack rabbit and a turtle...current settings are very scale like start speeds (aka turtle)

[RandyatBBY]

A soft start on the esc is good. It depends on the having the correct prop and good lipo to get your boat to launch well.

[fidelity101]

Thanks Randy. I did notice that it came out of the water faster with a 52mm 2 bladed prop as opposed to the 52mm 3 bladed prop. The amp draw went from 130A max to 180A max upon making the switch and my 6200mah 30C battery packs probably took a pretty large dump when trying to provide the power requested.

This was in the Joysway UH-1 hull which looked great but performance was less than desired. The new hull is a 43" Aeromarine Conquest so I'm sure it will get up on step faster as the hull is far superior in performance/design. I noticed several youtube videos in which the Conquest literally jumps out of the water and tries to do a backflip...I definitely do not have that type of power advancement using the low timing on the Swordfish 300A Pro+

This is the type of performance I was talking about in terms of getting out of the water fast.

https://www.youtube.com/watch?v=MEq_bQTczn8&feature=youtu.be

I'm wondering if the Swordfish will be capable of this type of performance...maybe better batteries will be required?

[RandyatBBY]

I need a little more info how big is the Joysway UH-1. your motor, your prop and cells?

[grsboats]

Yes new batts with higher discharge are part of this equation.Gill

[fidelity101]

Joysway UH-1 is now DOA...selling the remains if anyone wants a project. :)

I am running a 43" Aeromarine Conquest with TP 810kv 5660 5Y motor, Octura B&S 52mm prop and the Swordfish 300A plus ESC on 10S using 6200mah 30C batteries. I've tried running 10S1P and 10S2P for power comparison...the batteries are brand new so I'm sure the performance will increase after a few more cycles. I think the low power start is preventing me from the fast starts...similar to throttle punch on castle creations ESC's. My E-Revo did standing backflips until I reduced the throttle punch. I would like a bit more "punch" when I jump on the throttle but I don't want to fry my batteries. I'm getting a solid 5 minute run time with the packs and the cells are coming in at 3.78 to 3.82v/cell so I think 5 minutes is the right run time. 8 minutes for the 10S2P setup.

Here is a video of the speed runs on my Conquest...it's brand new and these were the first few runs so it's not dialed in.

https://www.youtube.com/watch?v=xccHC8CQ6SM

[bonefisher]

Fidelity101... Could you post a photo by chance of the cap bank wiring? Would love to see how you did it...

Thanks!!

[bonefisher]

Fidelity101... Could you post a photo by chance of the cap bank wiring? Would love to see how you did it...

Thanks!!

[fidelity101]

I didn't build a custom cap bank, I just used the one Hifei provides. There are a few OSE members who build custom cap banks but my amp draw is always less than 250A so I didn't bother with anything super fancy.

http://www.offshoreelectrics.com/pro...SC+Accessories

Hifei High Voltage Capacitor Bank for running parallel battery packs

It's very easy to solder the leads on with a little flux and a lot of heat...I set my iron to 800F and it melted the solder quickly. The biggest thing to avoid is getting the cap bank close to the ESC housing as the shell is connected to ground...which means BOOM if you touch the positive lead to it. :)

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