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Found 139 results

  1. Eric Jorgensen

    My E+ decided to punish me today

    TL;DR: Don't believe the range reporter, don't start a trip when the battery drops below 50%, and try not to push over 12 mph. Today, I decided to do a 4.5 mile ride on 50% battery. It was over flat road and the distance estimator said 9 miles, so I figure I was OK. It was smooth sailing for the first 3 miles. I ride pretty fast and my NB beeps at me to slow down, which I do, but after 3 miles the unit was down to about 25% battery and it I started getting a lot of beeps and tiltback way more extreme than the normal tiltback I get when I break 12mph. It got so bad at one point that I almost had to stop. I tried putting the speed limiter on, but it didn't really help. I basically had to limp home at about 3-6 mph. At home, the battery was around 10%. When I checked, the unit temp was 120F, which I guess is pretty hot. Ambient temp was 60F. I'm 6'2", and weigh ~230 lbs with all my gear and backpack, which is getting up there, so I think this is what I get by pushing the unit a too hard. So the big lesson is that the 9B range is probably half what is advertised for a person my size. -e
  2. Miranda Anderson

    Monster Battery Pack

    Battery Pack from 2400w Gotway Monster. Great condition. $500
  3. Yesterday when I was practicing driving backwards (so many forward/backward) I got a voice from my Inmotion V5F: overweight, step off - and then it powered down instantly (good this was not happening outside training area). This continued to happen several times. Battery level: red bar plus yellow bar. Inmotion ios app showed 41%, and DarknessBot ios app showed 35%. my weight including clothes & gear is approx 85 kg. I assume this “feature” is correct if the weight combined with low battery happens. But.... I had over 1/3 left. Btw, this v5f is 1-2 weeks old.
  4. Got tired of carrying around the bulky charger to charge on the go on trips. So I had an idea to wire the charger internally, charging with the same 4-pin plug but off a 110v into the charger. Also solving the problem with battery power at the charging port .
  5. RickyBobby

    Battery Specs on Tesla, & Mten3

    Hi guys, Do any of you know the Continuous Current, and the Peak Discharge on the Tesla & Mten 3 batteries? It's my understanding that for each unit there are two batteries and they have a 84.7 Voltage. Thanks everyone!
  6. Kjelsli

    Rockwheel GR16 battery.

    Hey, Does anyone know where I could get a replacement battery for the GR16? I bought one used and it only charges half way. Also a more powerful battery wouldn't hurt I guess. I saw one guy that retrofitted one of these LiPo batteries, but I´m not sure which one to get. Best Regards K
  7. FineOne (a very good Aliexpress seller) is selling all originals spare parts & accessories for Inmotion V8 it's here http://s.click.aliexpress.com/e/jm6qbUZ You can use Paypal, no problemo
  8. hi everyone, I got this battery and would be grateful if anyone could tell me where or what the extra black connecter is used for.
  9. Zanoni

    16S Battery Level Variance

    I've had the KS16s for about a month now. The thing that I noticed when I first took it out of the box was that the battery % readout in the APP was jumping all over the place (varying up to 5% while just rolling it around by hand). Another thing that I've noticed in this month of riding, is that the readout just before I turn it off in the morning can be 10% lower than what it says when I turn it back on to do my return commute. This is my second EUC, following the V5F, and I'm wondering if this is a normal King Song thing (bad battery level algorithm), or is it just something to expect with devices that have larger battery packs? Or...nobody else is experiencing this, and my device has a bad battery pack?
  10. Hi, I have a Gotway MCM3 and I like it very much. Yesterday I went to work with it and there the battery (according to the app) was at about 40%. I charged (or thought I did, maybe I did something wrong). When I wanted to go home it said it was at 20%, which meant I couldn't ride it home. I went back charged for about 8min. To use it to go to the bus. It then said it was 60% full. At home, I charged it until the charger LED turned green. Then it said it was 80%. Later on, I connected it again and the LED was red for a while and then turned green. It still said 80%. I use the non-social gotway1.0 app. Is there any accuracy in the state of charge indication when switching on? Did you find a trick to check whether it is fully charged? Do you have a means to charge fully? Thanks!
  11. WARNING ** THIS BATTERY MAY LIMIT YOUR TOP SPEED ** OVERVIEW: More4Mini is selling a new 3rd-Party battery made for them by the OEM WorldPower Shenzhen World Electric Co. Ltd. “Extended Range Replacement Battery for Segway miniPRO - 355wh 6400mAh” Specifications are listed as: Model: WP-DMR-01 Configuration: 15S2P Voltage: 55.5VDC Capacity: 355Wh / 6400mAh Listed on the battery is LG INR18650, implying that it is based on 18650 cells by LG, The More4Mini website also states that LG cells are used, but could not provide the specific model number of the cells. So it is really just about name-dropping, and not about verifiable specifications. Somewhat useful given the problems with battery manufacturing, but lacking for a technical product. If we can assume the specifications are done similar to the original batteries, then the 355Wh / 6400mAh hour capacity would be when charged to 63V rather than the 55.5V Nominal voltage, or the 59.5V used by the standard North American Charger. More4Mini claims a 20% increase in mileage, but does not have any basis for this statement that they were willing to share. Based on the full Wh or mAh capacity, the increase would be somewhere between 12% and 14%, but the dynamics for estimating the increase are too varied given the potentially different discharge profile of the battery, and the operating environment variables such as rider weight, terrain, individual user’s speed/acceleration profile, enforced speed reductions by the MiniPro, etc. I would assume the stated 20% increase would be based on the 59.5V charge of the standard charger, but it is not explicitly stated. COST METRICS: Using the full 355Wh spec and the current cost of $200US, this works out to $0.56/Wh, which is an OK price, but not a super deal in terms of pure $/Wh. The Segway 310Wh battery, based on More4Mini pricing ($255) works out to $0.82/Wh which is on the expensive side. Keep in mind one is not getting the full capacity of these batteries if using the stock charger, so the real theoretical cost is higher. The actual cost would need to measure the actual Watt/Hours used during operating the device as all these numbers are nominal and can vary widely from actual use on the widely varying motor load of the MiniPro. Raw cost of 18650 capacity for a general consumer ranges from $0.20-$0.80/Wh ($0.40 for quality cells), and one would actually expect to get a discount when buying in bulk such as a battery pack as the extra electronics usually are very inexpensive. so a cost of $0.40/Wh is good value in a pack like this, but since it is custom with limited demand, the $0.56/Wh cost of this battery is reasonable. TESTING: I bought this battery just for fun, and to see how well it worked with the MiniPro. I feel the reported increase in capacity is not enough for someone to want to upgrade their battery, but if one is looking for a new battery or a second battery, then the increased capacity would be nice. It should be able to maintaining a higher top-speed for longer at the very least, and that is useful as I really hate how the MiniPro must reduce top speed as the battery is discharged. The battery weighed 1923g. This is roughly 110g less than a fully charged Segway 310Wh battery. The voltage of the battery when delivered was 57.9V. The battery is sealed, so I won’t be ripping it open today before testing. The standard charger connector is used with the threaded collar just as the original, and the connector cover is good. I like the charge connector cover better than the original, it stays put, and I think it will last as long. The battery did not include the small rubber insulators/seals/washers for the 4 screw holes, but it does have the recesses for them. This is unfortunate, but not a huge deal. There is a little LED on the back of the battery, or at least a window for one, but it does not blink or do anything when the battery is not connected to a charger. There was no light on the battery when connected to a charger either, at least not at its current charge state. I suspect the light is non functional. NO BMS COMMUNICATION. As expected the battery has no communication from the BMS in the pack (I presume there is one), with the MiniPro, so there is “no” battery information provided in the App. The App shows the speed is limited to 10km/h on my Segway, I’m using v4.0 of the Ninebot App, and I’ll have to check the firmware version. Alexey from More4Mini, said he was not speed limited, but did not use the App. I will need to do a road test to see if that is true, but I’m not very hopeful as I think the firmware has limited the speed with the battery. If true this is a real show-stopper, if it just means one cannot use the App when using the battery this is less of an issue, but inconvenient since you won't be able to watch your speed. tried charging the battery from its delivered state using the stock Ninebot charger specified as 59.5V (OC Voltage measures 59.61V). After 80 minutes the charger light turned to the undocumented yellow/amberish color, the battery measured 59.18V (charger connected), then at 90min it had turned to green and the battery measured 59.21V (charger connected). The ending voltage of the battery (charger disconnected, 15+ min rest) was 59.15V. So it would appear that charging the battery with the stock MiniPro charger worked as expected. I moved it onto a 63V charger, since I figured at this point it was best to have a full charge on the batteries. After 45min the charger had a green light, and I didn’t give it any extra balance or top up time, the battery measured 62.3V Unfortunately the road-test failed. Speed was severely limited I could not not ride it, it was just too annoying. Tilt-back would just bring me to a standstill as I tried to go up a small incline near my place. it worked ok for a 5km/h, or less, trip to the garbage bins, but anything more than that it was not tolerable for me. Since it was dark and starting to snow I didn’t spend any time trying different things. I never connected with the App after installing the battery, so clearly, as is pretty well understood, the firmware was limiting the speed. I used my oldest Segway but it uses, v1.4.0 firmware and I don’t plan to update it as I’ve heard nothing about the latest updates and I’m worried they will restrict the 63V chargers or may other annoying changes as they have done in the past. It is hard to downgrade the firmware and I don't want to mess with that. CONCLUSION: I’d recommend sticking with the official batteries if you are on firmware 1.4.0 or later as this battery is not really usable with a 10km/h limit (or possibly even slower before tiltback kicks in). Maybe someone else will test it with earlier firmware or More4Mini will provide more information on what is required to remove the speed restriction, but it seems to work the same as all the other 3rd-Party batteries so I’m not sure anything really can be done outside of changing the firmware. I guess this was a case of too-good-to-be-true.
  12. Hi everyone, I've been having this issue for quite a while now and have really just been avoiding riding the wheel for any significant distance. With the Discord chat slowing down lately, I figured I'd post here to maybe get some ideas. Basically the V8 is sounding the "Be prepared" warning, flashing red, and doing the forced tilt back till stopped at really high charge. Looking at the official app it will read 85-90% charge some of the time. Watching the temperatures in the official app or in Wheellog don't seem to show anything out of the ordinary. It's been cold enough where I am too so it's unlikely to be a temp issue. Often the wheel will start up again, sometimes needing two or three tries. If the charge was high enough it will run for another 1/4-1 mile and do the same thing. Once it's down to about 80% charge the only way to ride is to go as slow as possible, but even then it will trigger the tilt back. Eventually it completely refuses to turn on despite having over a 70-75% charge. I've only had the wheel a bit over a year, and I think it has around 150-200 miles on it. The issue has been happening for basically the whole time I've had it, bar for the first month or two. I'd have swapped out the battery by now, or sold and replaced the wheel to someone better equipped to fix it, but I had to save for a really long time just to get this wheel in the first place, so any budget friendly ideas would be great. Thanks in advance.
  13. So I bought a ninebot mini pro used. Short story the battery is dead, completely. I've taken it out and tried charging it. Nothing. Yes I know this voids the warranty but I didn't have it to begin with so... Oh, the infamous 4 red flashes on the battery and my research online suggest it's completely dead.. Does anyone know where I can order a replacement? Has anyone used moreformini.com before? That's the only one I can find.. thanks in advance for your help
  14. Hello guys, I've spent quite a bit of time perusing the forum (and others), but I haven't found much information about the new miniPRO 260 model, which I own two of. I bought my first miniPRO 260 from Amazon during the last sale. I was hesitant because of the smaller battery, but I figured that 1.5mi deficit was not a huge dealbreaker. When the unit arrived, however, I was surprised to see the app estimating an 11mi range with 100% battery. I know that range is dependent on riding style, temperature, weight, etc, but I at least expected the app to estimate the full 12.5mi range when fully charged. Furthermore, I have only ever achieved about 7 miles of actual range on the miniPRO, with normal riding over flat terrain, and tires at 45psi (I weight 175lbs). Based on my research, I figured that this was way too low, so I exchanged the unit. The new miniPRO 260 now advertises 14mi on a full charge, but that instantly drops to 11mi the second any weight is placed on the foot sensors! Does this happen to anybody else? The drop is universal at 3mi, meaning it will, for instance, go from 9 to 6 mi when at that level. I guess I'm curious what other miniPRO 260 owners report their app saying, and if the range is actually that much different than mine. I just got the replacement unit this evening, and I haven't had a chance to ride it to empty yet, but so far it seems about in-line with my previous miniPRO.
  15. Hi Folks, I just discovered a strange behavior of the LED ring of my KS-16S after my last ride: The battery was down to 38% and just before the recharge I recognized that the LED ring (on one Side only) lit a little strange: Instead of showing 4 LED solid green, there were 2 green and another white at top of the ring. (on wheel's opposite side the LEDs lit correct). After shutdown the wheel for about 1 hour, the LED rings came up correct again. Have you ever experienced such behavior? Any ideas about the cause of this?
  16. Hi Guys, Do you know if there are any portable chargers for EUC batteries with a Turbine or Pedal ? There are already portable chargers for mobile phones. I think it would be a great solution in emergency cases. Here is one example for mobile phones:
  17. hello wheelies, I have an extra battery installed in my Ks16 b. my battery gauge in the new kingson app app still shows 28 km remainder range display, in new kingsong app, or keep cycling for display, in old kingsong app. but it would have to be displayed twice the km. Can someone tell me if I can change something in the app so that the miles are displayed correctly?
  18. Hi, I'm new to this website and I need help with my IPS 191 I remember that I charged my EUC last week and tonight when turned it on, it started to beep constantly. The battery must be full as the green light won't blink. It sounds like the time when you crash and it suddenly starts to beep and flash lights! Has anyone experienced this problem? I own a Llohtz IPS 191 which I purchased last December and It has been lightly used since. (50miles on the mileage) The app connects but shows no battery whatsoever! Unfortunately, the charger light shows green as soon as I plug that in. So, I'm confused...! Is it the charger or I'm going to have to investigate it further? I just don't know where to start. tnx
  19. RayRay

    The eBike Option

    A few months ago... I decided to upgrade my crappy Walmart bike to an entry level eBike, so I took a chance and spent $300 on a crowdfunded kit. (Not yet manufactured.) ...Now, I have the opportunity to double the range (2 x 180Wh battery) at the early-bird discount price ($50). Details: According to Swytch, kit uses 3.6V 2500mAh 18650 batteries (generic?) Claimed weight of 2.1Kg for 180Wh pack and only 3kg for (double) 360Wh pack. (How?) The pack is just a metal box with a charging port that gets stored in the bag up front.
  20. Hello, Any of you, thought using his EUC as battery booster ? Recently I ran out of battery with my motorcycle. I went back home to take my cables and came back to the bike on my EUC. Once arrived, I had to ask someone his battery to connect my cables while I had a 840Wh battery between the feet. In conclusion, did anyone imagine doing an outside exit of the EUC battery to connect the clamps?
  21. So, I know what the Charge Doctor can be used for but I have no idea how to program it. It has one button !! I read this: http://hobby16.neowp.fr/2016/11/12/autocut-adjustment/ from the maker's website, but I'm no closer to knowing how to program the 80% (or whatever) cut off for battery preservation. I bought the V2 with two inputs, as I have 2 chargers, fyi.
  22. This is a short summary of information I collected comparing Lithium Iron Phosphate (LiFePO4, LFP) batteries as used in the Uniwheel with the wide spread Lithium-Ion (LiCoO2) batteries used AFAIK in all other brands, no-names, mobile phones... LiFePO4 are roughly about twice as heavy and twice as large as LiCoO2, and they have a higher self-discharge rate. Otherwise, they seem to have only advantages. They are safer, more environment friendly, about 10 times more powerful(!), have a very low voltage drop under discharge (i.e. considerably less power drop on low charge), are more tolerant to abuse, live about twice as long, and are cheaper per cycle. Sources: http://batteryuniversity.com/learn/article/bu_216_summary_table_of_lithium_based_batteries http://batteryuniversity.com/learn/article/types_of_lithium_ion https://greentransportation.info/energy-transportation/energy-density.html http://www.batteryspace.com/LiFePO4/LiFeMnPO4-Batteries.aspx
  23. This forum post has a ton of researched information and links about the interaction between a battery, ESC, and motor, particularly the role of the power-filter capacitors. The takeaway is that shortening the battery wires will always be better for the longevity of the electronics, as well as potentially improving performance. I may be wrong about this next part, but I also think that most EUC's would benefit from larger power capacitors (in the range of 4700-10,000uF; as opposed to the ~2,000uF found in most) I expect it would be better for the batteries to experience less "stutter" between charging and discharging while the unicycle starts and stops, and that the added buffer of power could actually help it handle bumps better, by providing an extra 10-15 amps in parallel with the battery pack. It'd also be important to pick capacitors with a low ESR or they won't be able to make use of their capacity. I'm considering adding a couple more on to my msuper v2, just on top of the ones already installed. Fortunately the roomy electronics compartments lends itself to this, compared to more "packed" unicycles.
  24. My question is for riders who have tested the same model while fully charged with different sized batteries. Did the bigger battery increase acceleration, power, and/or weight?
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