ESC Battery cutoff settings

12s10p30q
33v start
31v end

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What do you guys experience after you crossed the “cutoff start” threshold? In the VESC tool it states:

“The input voltage or current starts to get reduced”

That makes sense. However, I get “current reduced” to 6km/h. That’s a pretty useless speed to do anything with. It happened the first time today when I was doing a test ride and I ended up busing home :confused:

Is there someway for me to increase the “limited current” to ~10-15kmh? I don’t see anywhere in the VESC tool to do that though.

If I can’t, I’ll just change my settings to 3.05v cutoff start and 3.0v cutoff end because 6km/h is essentially the same as dead to me.

Thanks!

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Increase the distance between start and end cutoff to solve this

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Assuming you do this, how fast can you go after “cutoff start” is triggered?

Technically it doesn’t limit speed at all, only power

Im using a 10s4p battery and at 30% battery left and only doing 10 miles the battery shuts off. Anyone have any idea what is causing this?

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These look like 10S cutoffs

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Yeah, I deffiently did not do that lol

Some lions let you discharge to 2.5 tho. I dont think 30q do tho

Anyone?

You should repost / move this into Citadel. Super useful info I just happened to stumble here.

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@longhairedboy

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Will you look at that, a thread I started 2 years ago still holds some relevance :joy:

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@Red_souls FYI

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I got 2
4500mAh 30C 5s Lipo batteries.
The charge is 4.2 and I’m thinking my cutoff should be 3.6, anyone agree?

@Red_souls It would need to be 36v in the esc settings. There’s one setting for cutoff start (esc limits power so you’ll feel your board slow down but can still head home) & cutoff end (power cuts off).
I have my 12s at 44.4 start (3.7v per cell) & 42 end (3.5v). I also plug in two voltage alarms as I’m paranoid about cell variance.

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A 3.6 cutoff is too low IMHO

You might gain like ten meters extra range and seriously increase the risk of damage to your packs

My bad I put 3.6 instead of 36v, would that be good?

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36v would be the cutoff, hard or soft? Also do you run a BMS on your setup, it can track your battery levels wirelessly through Bluetooth, not sure if the BMS can stop your battery from going low. Gotta ask around since I got a Bluetooth BMS, I also think it tracks the charging, then again I could be wrong on this

It would appear I explicitly suggested to NOT use a 36V cutoff.

But you can do whatever you want, it’s your stuff.

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