How do you make a 20s battery from 6s cells?
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FWIW a 20Ah pack at 12c constant should give you 240A output, times that by number of P groups you’ll have eventually (e.g. 240A x 2 for 2P).
That said, I’ve only used their Graphene batteries, so not much input as to reliability or capability. This won’t ever get you to 20S though.
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Thanks guys…
I think I stay with graphenes
@Soflo I take one of them apart, and make a 2s out of it.
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For 20S1P 20Ah though, you’ll need like 16x of these (which is discontinued, not the point).
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At the moment i’m using a DIY battery, build out of pounch cells in a 20s2p config. They can deliver the amp needed. The problem is, that I have limited space on my gokart. So 20s2p out of pounch cells (spim08hp) only gives me 16Ah. I need more capacity, but at the same space. Thats why I think lipo could be the answer.
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And at the same time, when going full throttle, can deliver 180amps with headroom
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Details dude, we need it. What ESCs, motors, current etc?
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That’s sick!
I think the trampa guy use them in the monster box. As min i remember have Seen it somewhere in a video of them. Maybe @Trampa can say something to it in case they do use them.
I personally never used them but i would rather stay with 2p 12Ah graphens or 2p 8Ah graphens if your budget allows it.
You mentioned not having the best experience with small tattu lipos, but non the less you might want to have a look at there 14Ah packs. They longer than the usual packs, but also way cheaper than there other big packs.
@Arzamenable is running them and seems he is happy so far with there performance.
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I’d divide that number by 5 because manufacturers of lipo exaggerate A LOT on discharge rating. Take a peek at this line of source code from the calculator linked above:
lipoManufacturerExaggerationFactor:number = 5.25;
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That’s a bit harsh and it really depends on the brand but I would agree with realistically take round about half of the claimed discharge current as a good value.
There always brands like multistar thou where 12C is really just 3-4C in real life 
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Turnigy Graphene specs have reportedly been quite accurate.
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That might be right for the cells but do you think the 10AWG wires and connection taps would hold up if you would do a full discharge cycle on a 5Ah 60C graphen pack with 300A load?
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Nope 
I use 4awg on my gokart.
One of the reasons why I want to make it 2p
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But seriously, maybe you want to write up a small build thread of your go card? Think that would be interesting to read for a lot of people here.
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Yeah I could. But this is a esk8 forum
All I can say is, that this is so much more fun at the moment, than my trampa boards.
Me and a friend, both have trampa boards , comming from the esk8 World, the vesc was the obvius choice. So my friend bought the vesc 75/300. All I can say is, that vesc is not ready for bigger motors yet. We had so much trouble with no power, and wrong detections. In the end the vesc gave the magic smoke. Now we both run a sinwave votol controller, with field weakening. This is night and day, we have so much more power now. You can se my friends gokart here, running his old setup with the vesc75 and the DAVEega fucking up (because of vesc75), it did only 50kmh.
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That definitely looks like fun!
I would go for something like this if I would have enough space and tools to build my own.
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I have the space, but I don’t have spare money for that
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It’s almost the same price, as a good trampa build
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How’s that? You need a much bigger battery, bigger motor, bigger controller. And I guess a kart won’t be much less than a Trampa board?
What motor do you use?
P.S. seems like Frank is a fan 
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In big numbers.
I bought a used gokart for 512usd, and sold the gasolin motor for 150usd.
At the moment, I use 40 of these cells : https://batteryhookup.com/collections/green-friday-weekend-deals/products/4-200a-lithium-polymer-3-7v-8ah-flat-pouch-cells-lipo-batteries
Then a custom motor mount, the rear pulley, belt, throttle, wires, plugs etc.
Yes he is. But he couldn’t help regarding setting the vesc75 up for the motor, so my friend bought the same controller I use instead.
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