Yes, it says 20A continuous on the spec sheet, but as I have stated in my original post,
“My Boosted Stealth is rated for 2000W. Without factoring in energy losses that occur during DC to 3-phase AC conversion, the maximum ideal theoretical power would be 54.4V (SR voltage) * 20A = 1088W. Does anybody know the peak rating for the battery-esc Higo connector? Does anybody know how to calculate and/or measure the peak battery current of the Boosted Stealth?”
For one, no one actually knows if it uses 2000w. I doubt that it is exact, and that’s definitely only peak power.
Why do you need to know that anyway? Are you trying to decide what values to set in your theoretical upgrade to VESC?
Alternatively you could look at how much power the battery itself could output and then just make it so that you never melt the connector
Yes, I’m trying to set values to my FOCBOX Unity.
The battery I’m looking at right now from Chi Battery Systems can output up to 45A (Samsung 30q has 15A continuous discharge. 12s3p means 15A*3).
SkateMetric has documented the acceleration vs velocity of the Boosted Stealth. Any way I could use that to determine how much power the Stealth has, and by extension, how many amps are going through the Higo connector at peak?
Right but if you want to use the Higo connector, you can only do 20, so the connector to me seems like the most limiting factor here
And I can’t think of an easy way from the acceleration either
The connector is rated to 20A, but I’m skeptical that my Boosted Boards run at 20A maximum. As I have calculated in my original post, if the battery current doesn’t exceed 20A, then my Boosted Board runs at around 1000W max, which doesn’t check out.
If I can find out how many amps are running from the battery to the speed controller on my Boosted Board as is, then I can safely assign a maximum current to the VESC.
But the 20A is a continuous rating, I would wager the connector would get warm running at that for a long time. But even if the boosted pulled 30A for the five seconds of acceleration or whatever, it would probably also be fine.
Like I said you can’t really trust esk8 manufacturer power ratings anyway. I doubt it pulls 2000w, but if it does, it’s still hard to even calculate because they probably are talking about motor watts.
For example on my own board, I know that my motor amps max out at 55 each. However, the total amps being pulled through my xt-90 connector on my VESC are only 40 ish.
I’ll calculate it later this week. I can get some acceleration data that can help me make calculations to know the nominal peak power from a stop to 25mph, as well as the steady-state power.