Noob question thread! 2020_Summer

Try turning “multiple ESCs over CAN” on on both the master and slave ESCs, and also make sure the slave ESC has a different, higher number set than the master - If the master is 0, then the slave should be 1.

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We have very different definitions for float and charge. :slightly_smiling_face:

I’ve never used either word before when discussing Li-ion charging and they’re not used by the engineers or companies I work with (or use the products from) except for float charging of lead-acid batteries.

IMO, float and trickle aren’t technical terms for particular Li-ion charging methods or chargers. Certain communities and companies may have popularized those terms though, using them for very specific things that those communities and companies deal with. Nothing wrong with that but it can lead to confusion.

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What two words do they use?

In my experience, there are clearly two different general types of brick li-ion charger. (plus the hobby chargers)

shouldn’t need both, just the primary.

both would work though, and if you had two remotes in primary and secondary they might control each other.

Technically this isn’t required to work. but it’s good practice. as that gives the master priority on the can bus, if any messages are dropped it won’t be the masters.

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does the “trickle” type. ( CC/CV always on ) also have a red green LED? does it just light the green LED when charge current drops where a “float” one might stop the charge? or does the BMS cut the circuit and thus the light goes green and charge stops?

They don’t use any words for that kind of differentiation.

One variation uses a low-current cutoff and perhaps auto-restart when the voltage drops enough. This is just a standard CC/CV charger.

The other variation isn’t a charger. It’s just a CC/CV power supply being used for charging. Since non-stop charging of li-ion cells is never done these power supplies aren’t chargers. They’re just used for charging by some communities.

Neither is a float charger but one could argue that keeping the voltage within a certain range is doing that. Neither one is a trickle charger because they have a higher-than-trickle bulk charger rate. They both eventually charge at a trickle rate near the end of the charge though. But that does not make a CC/CV power supply a trickle charger.

Unless, of course, a community has decided that is their definition of a trickle charger. The engineers developing the chargers, charger controller chips, and the algorithms for charging aren’t using float and trickle though. They’re all just “chargers”. All of them stop automatically and most have auto-restart.

If the unit is a CC/CV power supply that would never stop charging they would just call it a power supply.

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Skate and destroy :joy: :joy: :joy:

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This is my first post here. I own some electric scooters. In the electric scooter world there is not nearly as much custom building as what you guys are doing here. I have an Apollo Ultra (Zero 11x is the most common name) scooter. It has dual 1600 watt continuous motors at runs on a 72v nominal battery (its a beast that goes 60 MPH). The ESC that it comes with has issues with overheating and it has garbage regen breaking (its basically on or off instead of variable). Some people (including Apollo Scooters) put the Stormcore 100D controller in this scooter. This makes the scooter much more smooth at low speeds (the motors are sensorless) and it enables awesome regen braking (people mount a separate trigger for the regen brake). I don’t like the Stormcore because it currently only has an app for iOS and I use Android. I have quite a few questions that I’m hoping someone here can help me figure out:

  1. What is the advantage of buying the Stormcore over the trampaboards VESC 100/250? The trampaboards appears to be build directly by Benjamin Vedder and the Stormcore appears to be proprietary using the VESC software but also having its own mobile app that doesn’t work on Android. I’m a bit confused why Stormcore would want to build their own controller that appears to be very similar to the already available VESC Controllers?

  2. Will the Stormcore work with the VESC Tool Android app?

  3. I found the Makerx-tech ESCs. The GO-FOC HI300/HV200 75V/100V 300A/200A ESC is also VESC based and appears to have sufficient power for my needs but its far cheaper than the Stormcore and trampaboards ESCs. Why is it so much cheaper? Is it lacking features, quality, or something else?

  4. Is there a good resource that compares VESC based ESCs?

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  1. Advantage-wise, each person value different things, so there is that, and the trampa 100/250 esc isn’t built by BV, at least not in a way that im understanding ur question. Stormcore has an Android app but it’s WIP. As to why other companies build their own esc varies, first thing would be the most expensive stormcore is a dual drive esc, but trampa esc is still a single, HD60 is just two singles slap together.

  2. Yes

  3. Even same item can cost differently, due to various factor, first would be location that they are selling from, second would be how much profit they want to make… etc, there are so much more behind a product’s price tag.

  4. U are in the right place already, if u have other questions, fire away.

feel free to correct me if I got anything wrong

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Hello
I have tourqboards 218 trucks have not used them yet I see online the bushings are not so good can someone please reccomd me an upgrade thanks

How much do you weigh?

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13 stone, just read somewhere the bushings were not fantastic might upgrade them if it wasn’t too much money.

13 stone = 82.55kg

or

728 bananas if u have a different unit of measurement

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182 lbs in FUB

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For TB218’s use Canons and Magnums for the bushing shape

https://www.riptidesports.com/all-bushings/krank/

I personally would do something like 87A duro for all 4 bushings. I find that suggestions are almost always too hard for my liking, which makes things less stable. I also find that using harder bushings in the rear makes things less stable, not more. But those are my personal findings, experts tend to disagree on both fronts. I disagree here with the experts.

There’s also a thread

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If you want more stability, reduce the angle of the rear trucks. Do NOT put harder bushings on the rear.

disclaimer: these are my empirical findings and may disagree with others

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Yes I did see they do have a lot of travel I won’t be doing any tricks just gentle skateboard?

Thanks

What is the hall sensor placement for a unity? I need to put a JST on but not sure of the order for some 6374 motors.

Or more so what the colors mean. I’m guessing red is the 5v?

Red is 5v, black is ground, white is temp, the other 3 are hall. Doesnt matter the order on those.

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