Відео

I’m sure you’re going to love it! Which wheel did you get?

@mrelwood_EUC i got a lynx with the grizzla set from oneride

😄 I had forgotten about it and didn’t even notice! But don’t worry, it has since been removed. 😊

I’d start with 160psi at the bottom, 60psi on top and see where it gets you. Adjust from there. You really should watch the video to the end though.

@@SamoukiTuki I upgraded the firmware right away, but haven’t noticed any differences just yet. Do you mean that the battery safety lock that previously required Inmotion to remotely unlock, is now removed during charging?? That’s quite a change.

@mrelwood_EUC yes, thats the point of this firmware

I might not get your points the way you intended. Balancing the cells IS exactly controlling the voltage. And BMS stands for Battery Management System. Every device (of any kind) that has a charging feature in it has a BMS, whether it has a balancing function or not. My point in bringing up the resistors was a response to WrongWay determining that if a BMS doesn’t have the same resistors than a GotWay BMS, it wouldn’t have a cell balancing function of any kind.

It’s all about the target audience! Read enough about things in inches in certain context and it becomes the standard unit.

Thank you, I’m glad they’ve been helpful! Unfortunately I don’t know when (or if) I’ll be making new EUC videos. Regarding the modern BMSs, I’m not very well familiarized with the differences nowadays. Back in the day all EUC BMSs worked more or less the same way, but that doesn’t seem to be the case anymore.

A few things I want to mention. First, balancing isn’t necessarily finished when the charger stops giving power. A part of the balancing happens when the charger has been unplugged, as long as the wheel has been charged to full +1-2 hrs. And if the batteries are especially badly balanced, it takes several balancing cycles to get them in line. But your method is sound and you should not expect balancing issues. Second, whether you should plug the charger into the wall or into the wheel first depends on the wheel model. The key is to have the charger cable and the charging port voltages as close as possible before plugging in. If the charger port is “live” (showing battery voltage at all times, Begode etc.) then you should indeed plug to the wall first. But if the port is protected and not showing voltage when idle (Inmotion, KS, etc.) then you should plug the charger to the wheel first.

I thought I was the only one who felt this. This I feel gives me more speed control so I dont just slow down. And have to get off. To brake, i merely sit half way.

The V12 has a safety system in place that locks down the wheel if the voltage difference between packs is more than 5V. You will then need to contact Inmotion to get it back open. Traditionally you needed to get the packs within 0.5V before connecting them together, but since they aren’t hard wired together in V12 you don’t need to be as precise. If you already connected the new battery and didn’t get locked out, I would still disconnect the battery that has more voltage and charge only with the lower voltage pack until they are close to each other. Only then connect both and charge together. The V12 should then be able to balance the pack voltages.

@@mrelwood_EUC Thank you very much for your answer. How do I charge a battery? If I charge the low-voltage battery separately and the other battery is disconnected, I found that the V12 will alarm. Do I need to use some other method to charge the low-voltage battery separately? Thanks again for your answer!

@WoniuGo I’m probably not up to date on the V12 firmware behaviors. Does it still charge despite the alert?

​@@mrelwood_EUC I tried charging a battery separately, and the V12 would have an alarm sound. Electronics is not my specialty, so when I heard the alarm sound, I got scared and had no choice but to unplug the power cord immediately. I'm not sure if it can be charged the same way if there is an alarm prompt? I don't have any other equipment to detect.

My guess is that it just wants to let you know that you only have one battery connected. There’s no danger in charging only one battery as long as the other is completely disconnected. This includes all cables that come out of the battery. I would start charging the one battery only and keep watching the voltage. If it goes up even a little, you’re good to go.

Incorrect. A crash can be caused by a huge variety of events, situations and places. If you think you can control all those elements only by limiting your speed, you’re fooling yourself. Many modern EUCs do have a lot of power reserve at those speeds, but it’s still nowhere near limitless. Ride blindly into a deep pothole with stiff legs at 40km/h and any wheel will dip enough to disturb your balance. Just for an example. Speed is not what taxes the wheel the most. Burden is. A shallow downhill and steady speed takes very little energy even at very high speeds, while a steep incline, harsh acceleration or a bumpy road taxes the energy reserve much much more even at just 20km/h.

@mrelwood_EUC Thanks for the information & thoroughly explaining internal/external factors. I'm currently debating whether I should switch from an e-scooter to EUC. This will help me make a decision.

@BerettaMac11Two9sAndaK, That’s a whole another question though: - Bigger tires of EUCs roll over bumps, pots and curbs with much less effort. - Modern EUCs are usually more stable at speed than scooters with an upright steering shaft. - EUCs are much more convenient to roll next to you in stores etc. - EUCs fit into cars without any effort. - AFAIK EUCs have a better range. - EUCs are simply much more fun to ride! If you’ve never done it, you’ll never understand how magical the mind reading flying carpet feels.

The simplest version: level the back of your shoe with the back of the pedal. More advanced: put your heel and ball of foot at an equal distance from the pedal center.

@@mrelwood_EUC Thanks, will try that

It depends on the model and it’s BMS features. The V14 has a smart BMS system that valances already at a lower voltage. So you don’t need to worry about balancing on that one, you can stop charging at 80% if you so wish. (I wouldn’t if I need the range.) I don’t know if the V14 stops charging at some point. Either way though, 3 hours isn’t harmful as long as you go for a ride in a few days. I wouldn’t leave it full like that for weeks. Once isn’t bad, but if the wheel spends a lot of time charged to completely full, the capacity will degrade several percentages a year just because of that, on top of the normal degradation.

@@mrelwood_EUC thank a lot. No, it does not stop charging after 100% automatically. So i will keep on charging it to 80% in this case as I did before.

@@AnthonyClark-wu7fw Thank you! I was hoping for the information to be useful to others as well. 👍

@@d.d.jacksonpoetryproject The voltage balance between the battery packs is a different direct altogether. Cell balancing only balances the cells inside one battery pack. The voltage differences between packs are handled by the mainboard. Unfortunately there have been several issues with differing pack voltages on the V11. It doesn’t help that the firmware is a bit trigger happy about this safety feature. If the pack voltage difference remains as large as you mentioned, it’s a warranty issue and you need to contact the seller. For intermediate differences that balance themselves out you can contact Inmotion directly to have the lock removed. But they won’t do that if the difference is that big.

@@mrelwood_EUC I contacted them and they insisted it was safe after observing my log to ignore the warnings and go ahead and fully charge. Once I did this they rebalanced and all seems well now, thankfully (knock on wood!)

To be exact, every wheel ever made has a BMS system of some kind. It’s just about which features the BMS system has. But yes, as long as you have good charging and discharging habits, you don’t need to worry. For more information on charging and balancing, check my 80% charging video.

@@skampster I don’t know if the Lynx BMS balancing is smarter than the passive top balancing of the older wheels. If it balances at lower voltages like V13, V14 and S22 do, then you can safely only charge to 80% every time if you so wish. Though it doesn’t remove the fact that you’d still be using only 80% of the capacity already now in order for the capacity to be better after 20 000 - 60 000 km… If you don’t plan to ride much further than that with your wheel, you’re only missing out by not charging to full.

Thank you! I’m glad to hear that the video helped with your V12. I don’t know the how the charging mechanism of the Lynx does it, but several modern wheels balance already well before 100% charge (at least V13, V14 and S22). If Lynx does too, charging only to 80% would be ok for long term as well.

Holy crap, you’re absolutely right! I have no idea how I could’ve calculated it that wrong. At the end of the video I mention that I only lose about 5% due to a shorter pump hose. I should’ve gone with those numbers all along. Frankly, this is an old video and I don’t remember where I got the 15% pressure loss example.

That would work… Or you can check the PWM utilization in an app after you accelerate to get a baseline on how much reserve you had.

Yes, parallel connections always have the same voltage as it can’t be different at the ends of a 3cm long nickel strip. The 18XL doesn’t need to limit the voltage, the charger does that naturally. The battery voltage can’t be higher than the charging voltage of course. If the cell groups were very badly balanced, some cell groups could reach the overvoltage limit just as well.

@@mrelwood_EUC - I corrected my prior comment. The 18XL is constantly cycling charging off and on to limit the average current. Based on what I saw, I assume that once one or more cell groups reach some upper voltage threshold, the 18XL BMS shuts off charging while 100 ohm resistors discharge the high voltage groups to some lower threshold, then cycles charging back on again. Based on what I remember, the short bursts of current occurred every 5 seconds or so. If a pack was badly balanced, then the bursts would be less frequent and shorter still at higher current. The V8F could do something similar, except with 1000 ohm resistors, the short bursts would occur every 50 seconds or so, but instead, it shuts off charging for about 8 hours while discharging down to 82.5 volts, then cycles charging back on for about 15 minutes (at 1.5 amps) before a cell group reaches upper voltage threshold and cycles charging back off again for another 8 hours. That slow discharge could simply be due to the V8F staying on enough to communicate with an app.

🤣

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