Archived: the OG noob question thread! šŸ˜€

When I bought my wheels from aliexpress I opened 1 up and they came way to high pumped and there was a chip straight through the hub and 1 bolt of 1 wheel

I filed a claim for a quarter of my money back and aliexpress grave me like a £2 refund in the end
It was just a really annoying experience

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I don’t claim I receive anything for this very reason.

Until it’s proven to be good of course.

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After a 11km trip today i realised the mobile vesc tool says the wh/km in rt data page. Is that value generally the total between both sides of a dual controller, or just half?
It was at 8.8wh/km. I’m a pretty big guy but didn’t have the courage to step on the throttle too much

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I finally received my OPUS BT-C3100 v2.2
And on charge test, during the discharging stage, the current switches off and again on every few minutes.
Is this normal?
Testing 4x NCR18650GA each set to 1A.

Hey Daniel!
Do you use CAN bus or do you run your vesc separately?

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The first page shows the data only from the connected vesc, the one in the middle shows combined data from both. In your case 8.8wh/km is the total draw from both vescs.

I came across this when upgrading from mono to dual drive.

One thing I also noticed is that I needed to add half of the battery capacity in the motor cfg for both master and slave, this gives me a correct readout of the estimated range. 10Ah battery, 5Ah on the master, 5Ah on the slave.

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Internal canbus, it’s a dual esc

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Wait, in the motor wizard, where i put battery capacity i need to put half of it? 25km at 80% battery seems right to me…

Not sure about the wizard, try adding the full capacity there and then check the motor cfg afterwards what the value is there.

I haven’t tried the full range yet but I was getting 16-18km with 5Ah mono drive, added 5Ah more and a second motor. It’s showing me an expected range of 38km atm so it seems correct to me.

Edit: this is referring to the android vesc tool, not sure if the desktop one has different values or not

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anyone know the dimensions of a standard caliber truck and that of a TB218? I’m tryna make a clamp for it so I need the ā€œD-shapeā€ dimensions.

EDIT never mind found it

In the tool now. Motor cfg is at 9.000Ah. fresh boot so i don’t have any range estimations.
Also, is there ANY tutorial for the android tool? Half of it seems like menus thrown in there…

As far as I know the Android app should be feature complete with regards to the desktop app.
All the same settings are there just laid out differently. You can scroll the top menu (Start, RT data, Profiles, etc.) to get to the other settings.

The VESC tool will show the settings of the VESC that has the BT dongle attached when it connects, to switch to the other VESC you enable CAN forwarding (Scan CAN bus, click Activate).
When CAN forwarding is enabled essentially the only page you will make changes to is the Motor CFG.
The rest is usually set up correctly if you did the wizard. You might want to make changes in the App CFG as well if you have the BT and remote on different VESC’s but I have not tried this since mine are both on the same one (VX1 w/ PWM, nrf51822 module w/ uart)

So just want to make sure I’m not an idiot. I have 4 lipo batteries 6s two in parallel and two in series. When connected to an amazon lipo battery meter, I should only be riding it until 60%, right? Or do the meters account for the usability of lipo batteries and I can actually be riding it down to 0%?

I’m just learning this stuff too, but I wouldn’t rely on a percentage. Does your meter have a voltage reading? Until I get some telemetry set up or a Davega, I’m just bringing a pocket meter with me to check as I get lower on the remote.

So trampa vescs are rated 60v
I asked can I run 13 or 14s li-ion 54 or 58v around

He says no cause of voltage spikes

How much are the voltage spikes on those respective batteries

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@Halbj613
I found that I get voltage spikes when breaking. For 30V it had spikes up to 45V, I immediately stopped braking when on my lab bench psu once I noticed it since it’s rated 30V Max.

Of course the spikes could have been even higher, the refresh rate of the segment display on these lab bench PSUs are lazy

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So what do you expect is in theory the max voltage you could run on one of them
13s ?
52v?

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Please ask someone more experienced than me for specific answers :slight_smile:
I would feel bad just throwing my assumptions at you…

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K get you hopefully someone else can shed some light

Lots of people run 13s on a unity which I think is also 60v?

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Well, there is a 75V rated one… But that one scares me off.
The 60V one should be used with up to 12S batteries. If the website of the mind behind all VESCs says so, I would believe his words :slight_smile:

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