Search results

  1. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    That's a really interesting thread, but given the totally different battery connector\slot, I'm not sure it's relevant to Dorado Pro/Plus/Max/2170 505L cases (to fit "Surface 604, NCM, Rize, Magnum, Aventon", Frey AM1000v5, etc)? I'm looking to add as many 18650 cells as possible, to the...
  2. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    Background: I've wanted a 21700 case packed with 18650 cells for quite a while, just due to an ample supply of cells at a local builder; however, the hype around silica graphene cells is getting to me, & the mere suggestion of such potential, has me returning to old questions of "so, how many...
  3. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    I do think they are a great option, but I'm trying to determine how many 18650 can fit in the 21700 case, in anticipation of some new 18650 cell types... Thank you so much for following up on the model for the interior dimensions! (It's not exactly a box of 90° corners, inside there; I felt I...
  4. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    Hi Jenny! I may have asked you this before, but has anyone done the math\geometry, on exactly how many 18650 cells (with BMS of course), could fit inside the Dorado 21700 505L? Without an exact 3D model of the interior angles, I'm having trouble mocking up a layout (I'm thinking lengthwise...
  5. ProphetZarquon

    2022 - Top 12 Bafang Ultra M620 Ebikes

    Battery communication is mostly a matter of having enough wires strung to the cells: Most ebike BMS are only wired to sets of cells, rather than each cell individually; when wired together, you can only tell the state of each set, not it's individual cells, & have to take on faith that the...
  6. ProphetZarquon

    2022 - Top 12 Bafang Ultra M620 Ebikes

    You want the Canbus version? Any particular reason?
  7. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    While I do agree that a good safe battery is worth a lot of added cost, ovt's not hallucinating that in general prices have gone up more than costs, & due to what I'm guessing is a bit of relative rarity compared to other case types, prepacked Dorado cases are showing some markup compared to...
  8. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    Also note that so long as the 52V battery's maximum charge voltage does not make the controller complain of over-voltage, a 48V controller with a 52V battery gets more MPH per watt because the 52V battery doesn't sag below the 48V system's optimum. In most cases where a 48V controller is not...
  9. ProphetZarquon

    Reention Dorado 48V 25Ah 29Ah&36V 30Ah (505L) Replacement Battery for eBikes Surface 604,NCM,Rize,Magnum,Aventon

    It's not just a matter of losing peak torque availability, either: A motor like the m620 runs much cooler at 60V×17a=1020W than at 48V×21a=1008W. Any heat is wasted Ah. Lower voltage means more waste. In such cases, a 48V controller pulling ≤30a from a 14s6p pack, will get more Ah per cell...
  10. ProphetZarquon

    Ultra Tuning: Decoding the Voltage Section of Torque Tab

    Indeed, current needed to hold a given speed, roughly doubles every ~10 MPH or so, over ~15 MPH. So, something like 3, 6, 12, 24, 48, 100 %... except buffed quite a bit at the low end to account for all the non-aero-related drag that predominates at low speeds? Perhaps notably, I find that...
  11. ProphetZarquon

    Ultra Tuning: Decoding the Voltage Section of Torque Tab

    And if you weigh less than 60Kg, bounce on that front pedal! Yank up on those handlebars like you're lifting barbell weights! For smaller riders, applying 60Kg of weight to the front pedal, could be legitimately challenging. (For those of us who weigh more than 60Kg / 133lbs, maxing out the...
  12. ProphetZarquon

    Ultra Tuning: Decoding the Voltage Section of Torque Tab

    I'm splitting hairs again here, but technically the g510 m620 Ultra's motor-controller could be configured for a variety of torque sensors. The spline-shaft sensor it comes with, has a limit of 60Kg. (I would love to fit it with a 120Kg sensor, if I could find one compatible with the...
  13. ProphetZarquon

    Ultra Tuning: Decoding the Voltage Section of Torque Tab

    I hate having to change PAS mode just for changes in speed (as opposed to a change in the amount of assist I "feel"). The feeling of uniform acceleration from a given pedal force, even as my speed \drag increases, is why I like being able to tweak those SpdXX settings on the torque tab. I...
  14. ProphetZarquon

    Ultra Tuning: Decoding the Voltage Section of Torque Tab

    I'm just getting to this thread. Great work so far! I think this information could really help m620 owners\builders who see it. An early note regarding paragraph 4: This represents the voltage output of the controller torque sensor when no force is being applied to the pedals. Also note that...
  15. ProphetZarquon

    Bafang Ultra "Smooth" tune by Mike at Frey

    I mean, if you're getting different results please post them here as it's critically relevant to this thread; but I can only suspect there might be different UART controller firmware setups out there, if lowering your Display's speed limit lowers the MPH at which assist ends yet doesn't lower...
  16. ProphetZarquon

    Bafang Ultra "Smooth" tune by Mike at Frey

    Because we still need to shift. If we were talking about a single-speed rear-end, it's true that cadence alone could achieve most of the assist scaling we'd need relative to final speed (though speed data would still be very useful); once cadence got high, there'd be nothing to do but try to...
  17. ProphetZarquon

    Watt Wagon direct competitors?

    If I could actually get normal products, scaled up 30%...
  18. ProphetZarquon

    Bafang Ultra "Smooth" tune by Mike at Frey

    I saw that statement, but all I can say is that the UART m620 on the 48V Frey AM1000 v5 which we received, definitely bases "Spd20" on the MPH reported, not the motor RPM. I don't know where he got the idea that the Spd columns go by RPM, because that literally wouldn't work in any useful way...
  19. ProphetZarquon

    Bafang Ultra "Smooth" tune by Mike at Frey

    Regardless of what speedometer settings are applied in the Config Tool app, so long as the "Speed Limited" field on the Pedal Assist tab is set to "By Display's Command" then the Spd20 settings come into effect at 20% of the speed limit set in my display. The display we've got increments in...
Back