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  1. NCC1941

    What the heck is wrong with UPP packs!?

    “UPP is one of those reputable, premium ebike pack manufacturers.” I could be misreading, but it sounds like you're attributing that sentiment to me, which is not what I said, and it couldn't be further from the truth. I'm aware of the horror stories. When the topic comes up, I go out of my way...
  2. NCC1941

    What the heck is wrong with UPP packs!?

    The main problem here is that, for a lot of groups, forums, and people who claim to be experienced and are quick to give out advice, UPP is one of those reputable, premium ebike pack manufacturers. Most people researching ebikes for the first time never even find out that ES exists. UPP built...
  3. NCC1941

    Cycle Analyst - still solid choice?

    Slight correction here - "Virtual Electronic Freewheeling" is a feature that was added to Grin's Phaserunner motor controller, but it is not a feature of the CA3. I recall some talk about adding it to the CA3 at one point, but if I recall correctly, Grin found that they get better 'freewheeling'...
  4. NCC1941

    Cycle Analyst - still solid choice?

    It's not explicitly a list of differences, but the CA2 and CA3 each have detailed info pages on ebikes.ca https://ebikes.ca/product-info/grin-products/cycle-analyst.html https://ebikes.ca/product-info/grin-products/cycle-analyst-3.html Basically, the CA2 is much closer to being 'just an ebike...
  5. NCC1941

    Cycle Analyst - still solid choice?

    One thing I've noticed about Grin hardware is that they don't seem to bother all that much with keeping up with the latest tech. The CA3 hardware may be divisive, but it remains competent at everything it's designed to do. So if the features it offers are the features you need and you can...
  6. NCC1941

    Friction *regen brake* sanity check

    The GMAC does drag, due to the locked clutch that allows it to do regen. However, just like a DD hub, you can overcome that drag by feeding the motor a tiny amount of current while rolling, just enough to overcome that drag, which costs little enough power that regen typically remains a net...
  7. NCC1941

    5 way lights/ indicator/ horn switch help

    3 of the wires will be for the turn signal (one wire for power in, one wire for power out to the left turn signal, one wire for power out to the right turn signal). 2 wires will be for the headlight button (one input, one out to the light) And 2 wires will be for the horn button (one input...
  8. NCC1941

    Rear wheel hub motors - do they free wheel?

    Front motor vs. rear motor makes no difference for what you're asking. You want a geared hub motor, instead of the direct drive hub motor you have now. Geared hub motors (with the exception of the Grin GMAC) have the clutch mechanism you're looking for, to allow the motor to disengage from the...
  9. NCC1941

    Right Cycle Analistv3 setup for this dummy?

    Are you using an external shunt, or are you plugging your CA3 directly in to your Phaserunner? If your CA3 is plugged in to your Phaserunner, your shunt value is still 20x too high. It needs to be set to 1 mOhm, not 20 or 40. Your CA3 is demanding 20x more power output than it thinks it is.
  10. NCC1941

    Right Cycle Analistv3 setup for this dummy?

    As HrKlev pointed out, that shunt resistance value under Calibration Settings is eliminating any possibility of correct behavior, until you fix it. That should be first priority. With the wrong shunt resistance value, the CA3 is reading incorrect wattage values, and using that bad information...
  11. NCC1941

    Torque arm for rear hub

    If you're using the mid-drive for braking, than that's what needs the torque arm (or rather, it just needs to be very securely installed in general). The hub doesn't need a torque arm for the same reason that you pedaling your single-speed or derailleur bicycle doesn't necessitate a rear hub...
  12. NCC1941

    Need help with Cycle Analyst/Phaserunner settings, dies on longer hill climbs.

    First, check the CA Shutdown Voltage setting under Misc Settings. It'll be 'Vshutdown' if you're programming via the CA3's display. If that's set to 42v or thereabout, set it to something way lower - lower than you'd ever see in normal use. 12v or thereabout is good. The CA3 can't regulate...
  13. NCC1941

    Need help with Cycle Analyst/Phaserunner settings, dies on longer hill climbs.

    I misremembered exactly how the CA3 handles the LVC. With the CA3, rather than having a rollback start voltage and a rollback end voltage (like the Phaserunner does), it instead simply has that one LVC voltage setting which you found. However, rather than the CA3's LVC being a hard cutoff like...
  14. NCC1941

    Need help with Cycle Analyst/Phaserunner settings, dies on longer hill climbs.

    Basically, if your CA is going blank, that's your battery failing at that point. The CA doesn't blank out until you drop below ~12v. So, it's likely that the problem is your battery's BMS cutting you off, for whatever reason. One potential and likely reason for the BMS to cut you off is that...
  15. NCC1941

    Why are geared motors worse than direct drive for climbing hills?

    https://www.ebikes.ca/product-info/torque-arms.html
  16. NCC1941

    52V / 24Ah triangle battery from Lunacycle is only charging to ~55V | it isn't the charger, already tried to jumpstart

    As this is a LunaCycle pack, it's more than safe to assume that it has a BMS rather than relying on the charger to detect and protect the cell groups. And indeed, both of the chargers mentioned in the original post are 'dumb' chargers. If one cell group were drained completely, the BMS would...
  17. NCC1941

    Who sells hub motors with L10 connectors Besides Ebike.ca

    Worth noting, the L10 connector will carry motor phase amps, not battery amps. Phase amps are often 2-3x higher than battery amps - Grin's 40A Grinfineon controller puts out up around 110A on the phase wires, for example, and their tiny Baserunner controller puts out 80 peak phase amps.
  18. NCC1941

    Cycle Analyst V3 preview and first beta release

    The electronic freewheeling feature of the Phaserunner works by maintaining a low set phase amps - which is a number that the CA3 can't see. The Cycle Analyst only has access to battery amps. To get a generally similar result via the CA, I've read of people setting the throttle input start...
  19. NCC1941

    Show motor temperature with S-LCD3 display

    Geared hub motors with a separate speed wire most typically get that separate speed signal from a dedicated hall sensor that reacts to magnets mounted on the interior of the motor casing, such that it spins with the wheel and not with the motor. Same principle as an externally mounted speed...
  20. NCC1941

    HELP! Jerky driving with Grin All Axle hub motor

    This isn't quite correct, for the newer Phaserunners/Baserunners paired with the newer CA3's with the waterproof connector and MF switch. In these units, the power button on the MFswitch is actually directly toggling power to the controller itself, via the two power switch wires which were...
  21. NCC1941

    Two throttles in parallel?

    I'm using two hall throttles, simply wired in parallel (all 3 wires), to a Cycle Analyst 3. The Cycle Analyst simply sees the higher of the two signal voltage inputs. So, for example, if I set one throttle to 2.5v and the other remains at rest (around 0.85v, as is typical for hall throttles)...
  22. NCC1941

    Throttle drawing 800+ watts - shuts off unit. Help?

    Taken from that listing for the LiFePO4 pack: Sounds like your problem is that you picked a battery only rated for 350w to power your 1800w+ system. I'm not at all surprised that you're running into these issues. The li-ion pack you linked to also looks underpowered for your kit. It's got a...
  23. NCC1941

    help with Em3v battery

    You might already know this, but you've got a rather extreme problem with cell balance - more than any reasonable BMS can fix overnight or within any reasonable time period. Based on the numbers you've provided, your cell voltages are as follows. After charging: 1. 4.0v 2. 4.1v 3. 4.0v 4. 4.0v...
  24. NCC1941

    Compact Field Oriented Controller, ASI + Grin, limited run

    Just confirming, the Phaserunner can be set to fall back to full sensorless mode in the event of a hall sensor fault. That behavior is toggled on/off via a checkbox in the Phaserunner programming suite, and it seems to default to 'on'.
  25. NCC1941

    52v battery on 36/48v controller doesn't work.

    Sounds like you might not be making a good/consistent connection between the 52v battery and the controller. 51.1v is well within the normal voltage range for a 48v battery as well, so whatever the problem is, it likely has nothing to do with the battery being 52v.
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