Tokumeino

Regarding the BMS, I know that it is not “smart”. But “smart” means little to me. I guess that it cannot monitor individual serie of cells. But not exposing voltages or allowing tweaks doesn't mean that it doesn't operate safely under the hood. So what about basic dumb features ? 1 - Does it permit active or only passive cell balancing ? (under the hood, no need to expose voltages) 2 - What are the main present and missing safety features ? By safety features, I mean funtionalities such as monitoring each pack separately and compare voltages so as to alert for an eventual dead cell after a full charge ; or using battery temperature sensors. That's not "smart" but nevertheless basic security must haves.

Unfortunately not. I don't think that it would fit the corner behind my front door due to its thickness. Plus it is on the heavy side for my vacation appartment where I have narrow stairs to climb. But mostly, I really hate the design with all these plastic parts attached. And over all, I just don't want their suspension system with the slider full of small wheels. It probably makes sense to other people but not at all to me. I strongly prefer simple and straightforward designs such as the Falcon's suspension.

Living in Paris, France, I won't ride below 0 anyway. But due to my weight over 80kg and half of my 15km commute beeing composed of dense urban areas (so frequent stops and speed variations), I'm afraid that this wheel will be a bit on the short side to me. Hopefully a V2 will add 20-25% battery and a better BMS.

Thanks @Skampster and @Funky. But that's not in cold weather, right ? Or do 50s cells behave very well at low temperatures ?

In your opinion/experience, what would be the range of this wheel for a 90kg/200Ibs rider at a 4°C/40°F (urban commuting ride at 35kph/23mph straight lines) and importantly : no crippled riding experience with beeps and reduces speed. I don't care about range past a decent riding experience.

Small wheels without large battery packs should be built with Molicel batteries or such : better for safety.

I ask max speeds wrt percentage to put things simple. I actually also keep a safety margin. Regardless, Molicel batteries can deliver more power at lowest voltage than regular batteries at highest. That's the whole point of Molicel cells or equivalents. And I'm specificaly asking about Molicel S18, not regular. If Kingsong does not tune their firmware to lower battery thresholds for max speeds, then you get all disavantages of Molicel witout critical advantages, and it is mostly useless. Regardless what safety margin one beleives adequate, I'd like some input to draw a graph with x=batt% and y=maxspeed. Then, anybody may draw his own conclusions/decisions.

Hi, some vendors sell the S18 v2 (2023, with the new hollow motor) with Molicel batteries. I've asked one of them (oneride.eu) and they told me that these are official Kingsong builds, not custom. But they couldn't answer the following question, and Kinsong (global) doesn't answer my emails. Molicel have less capacity but provide more current at lower voltage. So, there should be less need to be conservative wrt max speed at 30% and lower battery levels. As a result, if one is concerned by range with decent max speed and not range with reduced max speed, Molicel version may paradoxically provide more range. However, this may be true only if the firmware is adapted so as to lower the voltage threshold when speed limit drops. Hence my question... At which percentage does the max speed drop with Molicel S18v2 SE ? Still 30%, 20% or 10% ?

After using the watch a couple of days, I'd like to confirm that it works great. You even get SMS and notifications on the watch, if you want. I find particulary useful the haptic watch alarms. But as it (feature request 1), it is not possible to fine tune the (speed) limits accurately. If the wheel speed limit setup face was re-used, it would be possible to set an haptic return like 1-2 km/h before the wheel alarm so you can slow down just before hitting the annoying beeps. It would also be nice (feature request 2) to be able to apply a correction to the speed measured by the wheel. Indeed, my KS16X overestimates speeb by 6%. Any basic bike speedmeter is able to correct speed. It would be nice if the wheel was able to display accurate speed and distances. IMO, don't bother with speed limits settings and let them as it (based on fake wheel speed) ; just apply the corrections on the main watch face.

Also, I'd like to tell that the watch works perfectly with my KS16X. This work is extremely valuable. Attaching the watch on my wrist gloves will make an extremely convenient setup.

Thanks. It works. I've done it with the devmode. I used to try before, actually. But the point is NOT to pair.

THANK YOU SO MUCH @enaon ! Is there something specific not to forget to make the watch visible by GadgetBridge ? (Yes all permissions given to GB including all-time localisation). My phone can connect to the watch and I can handle the apps on the watch, but GB fails.

Actually, the option is already there ;-) My mistake.

Post error

I understand this safety thing related to alarms and it makes totally sense. While on feature requests, the number of panels/screens grows and IMO, it would be nice to get able to reorder them at will and even disable unused ones (such as the speed/amps graph and the live data in my own case), to fit personal preferences. That would however be a cherry on the cake and should not sit too high in your priority list. It actually would be more important to me if the max speed could be set to max_legal when we hit the button to enforce regulatory compliance 😁 And reset the speed history graph as well : it could help us, good citizens, to develop good and peaceful relations with policemen 😛