crunchtime
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- Arrma RC's
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- Outcast 6s
- Vorteks
The ESC can't know each cell exactly and it doesn't really need to. Voltage ÷ cell number should suffice assuming that you're using healthy packs.
I just hooked a 3S battery up to my Firma 150A ESC and it beeped three times as it should. So it recognized how many cells my battery has without any SMART battery connection. And it's fair for the ESC to assume that all cells are at the same voltage. It's assuming that you're connecting healthy batteries. Even if your assumptions were correct, a fully charged 3S battery is the equivalent of 3.15V per cell if it thinks you're putting a 4S battery in there. So based on what you said, there's three possibilities here:
As for the delayed starting, my assumption is that this has more to do with the gyro/AVC of the receiver and has nothing to do with the voltage of the battery. Yes, 30 seconds does seem excessive. But if you could take a video of it, that would help.
- The ESC should immediately hit LVC
- The ESC has no LVC
- You're counting the beep sequence wrong and the ESC is actually recognizing three cells and not four
Well it looks like I was full of misinformation. I just listened to the beeps again. It is kind of a "do da dee du du du du". Since there were 4 "du" beeps of the same tone, I took that to mean 4 beeps. But now I think the first "du" is part of the welcome sequence, and the actual count that matters is 3.
Regarding the 30 seconds, well after I sat there at the rig and tried again, and also counted how long 30 seconds really is, I was full of crap. So what I was calling 30 seconds is more like 10 seconds, maybe 15 max once in a while. And most of the time it is well below 10 seconds. Guess I was anxious.
When people do have a smart / Spektrum battery, I wonder if it can look at the individual cell voltages for LVC?