Parallel connector for twin motors

[Lockk]

I know some do this and some don't I am looking for some pics of how other folks have done this. I can find plenty of pics for 2
batteries one motor but nothing of what folks have wired up for a 2 battery twin motor set up. From an electrical standpoint it's a
lot of connectors and wire for the tiny bit of gain you get from it now if I was competitively racing sure.

I'm open to opinions and would appreciate a pic or two!

[jasoncyclone]

I would also like to see this!!! I just ordered a twin so the info would be great. Thanks

[Simon.O.]

There is a lot of debate over this issue. Different folk run different setups with varying success
You can do
batt > esc > motor
Batts paralell > 2 escs > motors

I do the parallel setup where all the power goes into the 2 esc's together and then out to the two motors.
Bear in mind for this setup the packs are in series to give me the 5S that I need.
Even if I replace them with 5S packs they will still go the same way, just the connectors will have to differ a bit.

Does any of this make sense ?? If not then sing out and I'll shoot some pics and draw some wiring diagrams for you.

[Lockk]

Simon,

Make sense no issue there I understand the wiring what I was looking for was a clean way of doing the parallel of two batteries to two ESC. I have done it
but again its wire and bullet connectors. I am sure you have seen the connectors folks have come up with for two batteries to one motor pretty small and
fairly clean. Would like to see how you did it for sure if you get time.

I was also hoping to hear some discussion on how many actually bothered with paralleling the batts for two motors, as electrically you don't gain that much my guess
is for racing any small difference in batteries is taken care of by paralleling and providing each motor the same amount of power must give some advantage for SAW or
an oval race.

Thanks again.

There is a lot of debate over this issue. Different folk run different setups with varying success
You can do
batt > esc > motor
Batts paralell > 2 escs > motors

I do the parallel setup where all the power goes into the 2 esc's together and then out to the two motors.
Bear in mind for this setup the packs are in series to give me the 5S that I need.
Even if I replace them with 5S packs they will still go the same way, just the connectors will have to differ a bit.

Does any of this make sense ?? If not then sing out and I'll shoot some pics and draw some wiring diagrams for you.

[carlcisneros]

Lockk;
I run twin 6S 5000MAH 40c packs in parallel on my 45" Insane mono. (turns into a 6S2P set up)
It runs to both ESC's (Sea King 180's), then out to each outrunner.
It works great!!!!!!

Thats the picture of it running in my avatar.

[Rumdog]

There really is no point in running the cells in parallel if youre dividing their output between two motors anyhow. I always wire each side individually.

[Lockk]

Lockk;
I run twin 6S 5000MAH 40c packs in parallel on my 45" Insane mono. (turns into a 6S2P set up)
It runs to both ESC's (Sea King 180's), then out to each outrunner.
It works great!!!!!! Thats the picture of it running in my avatar.

Carl agree I am sure it runs fine but electrically no real advantage I can see unless your racing or feel you have a battery pack thats way off from the other. Would love to see a pic of your battery wiring though.

There really is no point in running the cells in parallel if youre dividing their output between two motors anyhow. I always wire each side individually.

I agree with ya Rum I just don't see it worth the effort for what I'm doing either.

[carlcisneros]

Lockk
I race open FE mono here in Dist. 12.

I can try and take a couple of pictures for you.

I like to do the parallel thing due to motor draw. as each motor draws differently no mater what the manufacturer.
there might be a slight difference in some, but there is a difference.
I want both motors to always see the same voltage at all times is all.

[FighterCat57]

I found this diagram a while back;
Instruction- Twin Cat Wiring.jpg



I created this for fun;





You can either wire each side separate (sometimes causes sync issues with the ESC & tx/rx) or wire them all together and use the batteries in series and the ESC's in parallel.

I prefer to keep the series packs as a single unit to feed the dual esc's. This effectively is the same performance as using two parallel packs on the same voltage, but uses half the amps by doubling the voltage.

Hope I said that right.

[carlcisneros]

Lockk;
that is the way I have mine wired up as per Fightercats drawing.

[Lockk]

Carl,

For racing as I said makes sense.

Benjamin

Thanks for the diagram (always appreciate your help thank you) but how to wire it was never my issue and what you show is series batteries feeding the speed controls and yep I get that but my comment was paralleling the batteries effectively making say 2 individual 4s batteries into 4s2p then feeding two speed controls.

I was hoping to see some pics of an elegant way of doing it but since I didn't here was something I put together based on what others have done (for putting 2 batteries in series for one motor) this would just be for the neg side you would need two of these this would parallel your two batteries to the two speed controls.

I don't see an advantage to it so I never finished it

[FighterCat57]

Carl,

For racing as I said makes sense.

Benjamin

Thanks for the diagram (always appreciate your help thank you) but how to wire it was never my issue and what you show is series batteries feeding the speed controls and yep I get that but my comment was paralleling the batteries effectively making say 2 individual 4s batteries into 4s2p then feeding two speed controls.

I was hoping to see some pics of an elegant way of doing it but since I didn't here was something I put together based on what others have done (for putting 2 batteries in series for one motor) this would just be for the neg side you would need two of these this would parallel your two batteries to the two speed controls.

I don't see an advantage to it so I never finished it

That's quite elegant. The only potential draw back is how to shield it. With liquid tape or silicone perhaps.

I've done some X cables where I've stripped the center of two pieces of 8 gauge wire and then twisted them together and soldered at the twist. This was how I did some of the 2p connections I've done in the past. I had posted a photo somewhere, but can't seem to find it off hand. I used a small piece of wire to tie the two 8 gauge wires together at the twist and then covered them with heat shrink tubing.

[Lockk]

That's quite elegant. The only potential draw back is how to shield it. With liquid tape or silicone perhaps.

I've done some X cables where I've stripped the center of two pieces of 8 gauge wire and then twisted them together and soldered at the twist. This was how I did some of the 2p connections I've done in the past. I had posted a photo somewhere, but can't seem to find it off hand. I used a small piece of wire to tie the two 8 gauge wires together at the twist and then covered them with heat shrink tubing.

I was going to heat shrink the female ends then liquid tape and good ole rubber tape used for high voltage connections over the the part I couldn't shrink wrap I did an x just like you mention I think I even saw the pic you mention in one of my searches this was a way to reduce wires and try to make it look neater. God I hate being anal retentive some times!