What Lipo For 1940/6?

[coolhandcountry]

I have question. On lipos like batfish just posted the 6s3p. I know what the 9600 stands for. what does the 6s 3p stand for. I would guess 6s is like the number of individaul cells in the pack. The 3p I guess is like 3 cells in parrellal form to get the 9600. Does that mean there are 18 lipo cells in that one battery?

[Papa]

After looking at the scorion manual it seems like the speed control connects directly to the battery. Then there is a 3pin plug from the batterry that connects to the channel 2 slot on the receiver. It sounds like when running two packs in a series we would have to have some sort of a Y connector between both lipo packs and the speed control and then another Y connector betwwen the packs and channel 2 on the receiver. Is my thinking correct so far? :C:



@Cool this is a good thread on the lipo nomenclature lipo

[RC-Monster Mike]

Yes, papa, your thinking is correct.

[Papa]

For a grand total of 3 wiring harness:

1. deans series for power
2. 3pin for voltage monitoring battery slot on esc
3. 3pin for signal information to esc slot 2

urrgghhhhh...........:C: :eek:

[RC-Monster Mike]

lots of wires for safety's sake(and to protect the investment)!
I don't use the cutoffs. I just stop running immediately when the performance drops. It has worked so far, but a LVC is definately a good idea.

[Papa]

Getting it right the first time is sort of my philosophy. With such a significant investment, I hate the idea of screwwing it up. Risk Reduction...

Mike you have a reputation of being VERY accomodating. I don't like the idea of asking, but, for a price, would / could you make up these said wiring harness' for those of us with less than stellar wiring skills :o

Additionaly I have zero experiance with power supplies. Any comments in that arena would be most helpful.

[RC-Monster Mike]

Of course I could wire up the needed harnesses. The needed y connectors are actually an off the shelf product, with the series connector for the controller being the only real soldering that would be needed.
For a power supply, I do carry a 25 amp(more than enough!) power supply, which I use myself, for about $130. There are a few power supplies that would also work, but your "do it right the first time" philosophy tells me you want more than "just enough".

[Papa]

Mike, when I pull the trigger on the lipo I'll touch base with you about the off the shelf stuff and the series connector for the controller. Do you carry or can you get the Scorpion set up? Is a UBEC needed or a good idea?

With respect to the power supply and what is impotant to me:

1. Safety
2. Performance
3. Reliability

If I have to spend a few more bucks now to avoid the need for something different in a year or so, I'd do it. Can these things power up more than one device? What is needed to get power from a car batterry? In the past I have just taken enough charged packs with me to play for a few hours. I won't be getting to many $200 packs so I'll want to charge when a wall plug is not available.

[crazyjr]

Thank you mike and papa. You answered my main question perfectly and based on yours and batfish's opinions, i am going to get the fma setups when i can afford it

[standard_63]

Hey Papa,
I am not sure, but looking at your first pic it looks like you might have your front upper arms on backwards. I know because I did that myself!:p

The more cutout looking edge is supposed to face front -- setting the upper pillowball back farther and behind the centerline of the cvd. More caster that way and more stable handling, but not as quick.

So far I've also not been using LVC on my lipos, just stopping as soon as performance drops. Seems to work ok as the drop is above the lowest voltage the cells are supposed to go. I use 2 x 2s2p TP6000.

[Papa]

Stanard...Good Eyes, I am aware of the issue with my front upper arms. I snapped a few quick shots right after the mock up. I did not put in the shims on the hinge pins either, no locktite anywhere yet. I 've got to work on the stobe integrated limiter mounts in the rear, to accomodate the DD wingmount. Also gotta go back and switch in th UE Hardened steel idlers. Whew! It's comin' together but a long way to go.;)

[Papa]

Mike or anyone, for that matter, would you tell me more about the power supply you use? Have you got a link?

When monting lipo in/ on a Gmaxx chassis, what is the best way to safely protect the packs from flying debris,impact and other possible damage.I've seen the Associated battery cups, any other methods or techniques?

[Batfish]

I use a 25A power supply I bought at my local Radio Shack, but I believe Mike can get you something just right for what you need at a good price.

I don't have a G-Maxx chassis, but my XXX-4 buggy has the cutouts for nimh/nicd cells. I cut a piece of lexan (.040 from Parma, part number 10422) to cover the holes so I can set my lipo pack on it and not have to worry about rocks/debris hitting the cells from underneath.

[Gustav]

Originally posted by Papa
After looking at the scorion manual it seems like the speed control connects directly to the battery. Then there is a 3pin plug from the batterry that connects to the channel 2 slot on the receiver. It sounds like when running two packs in a series we would have to have some sort of a Y connector between both lipo packs and the speed control and then another Y connector betwwen the packs and channel 2 on the receiver. Is my thinking correct so far? :C:



@Cool this is a good thread on the lipo nomenclature lipo

According to FMA,you don't use a y-harness to connect the LVC wires when using multiple scorpion packs in series.

They have a standard response e-mail explaining the connections,you basically just daisy chain the LVC wires from the 2 packs together.So one pack plugs into the ESC,the other into the reciever and the 2 packs just plug together.(no additional wiring needed).This was my understanding from their e-mail anyway.

If you send them an e-mail asking how to connect the LVC wires when using multiple Scorpion packs in series then they'll send you the standard response so you can check that i haven't misunderstood.

I was confused by their reponse at first because in many pics of the packs you can only see one LVC wire but if you look at the manual there appears to be 2,one to the ESC and one to the reciever,as you said.

You only need one y-harness not three.(deans harness to connect power wires in series)

[MetalMan]

Gustav, you got it correct with the LVC wires and RX wires. Basically, if one of the packs hits LVC before the other one, it will still cut the throttle.
I think one of the RX wires for the battery is covered by shrinkwrap, and it isn't just a wire coming out.