Maximus Posted April 21, 2017 Share Posted April 21, 2017 In an effort to see how many miles I can get out of a single charge, I'm working on draining the battery of my inmotion V8 down to zero. Most of my rides are short, 20 minutes-ish, and roughly 2-4 miles, so it takes me all work week to get there. Anyway, I'm getting close, and just wanted to know if there are any warnings to look out for when riding at a low battery percent? I've been reading other threads, where other wheels get "tilt back" when they are getting low on battery or maybe start to slow down. Do these things happen with inmotion wheels too? When I finally get down to zero % will the wheel just turn off, leaving me with no stabilizing help? Thanks in advance for the help, I'm just trying to prepare myself a little so that I don't end up with a fantastic "face plant" story or worse ... Quote Link to comment Share on other sites More sharing options...
US69 Posted April 21, 2017 Share Posted April 21, 2017 (edited) 25 minutes ago, Maximus said: In an effort to see how many miles I can get out of a single charge, I'm working on draining the battery of my inmotion V8 down to zero. Most of my rides are short, 20 minutes-ish, and roughly 2-4 miles, so it takes me all work week to get there. Anyway, I'm getting close, and just wanted to know if there are any warnings to look out for when riding at a low battery percent? I've been reading other threads, where other wheels get "tilt back" when they are getting low on battery or maybe start to slow down. Do these things happen with inmotion wheels too? When I finally get down to zero % will the wheel just turn off, leaving me with no stabilizing help? Thanks in advance for the help, I'm just trying to prepare myself a little so that I don't end up with a fantastic "face plant" story or worse ... Didn't the V8 have voice prompts (and tiltback) for low Batterie? I dont know it exactly...Sorry! But: My advice would be not to go down below 5-10%(better 15-20%)! Running down the Batterie to 0% gives a good amount of unneeded stress for the Batterie and can when drawing to much energy result in a faceplant! You can do a assupmtion of mileage also with just going down to 10-20%... Edited April 21, 2017 by KingSong69 3 Quote Link to comment Share on other sites More sharing options...
Maximus Posted April 21, 2017 Author Share Posted April 21, 2017 11 minutes ago, KingSong69 said: My advice would be not to go down below 5-10%(better 15-20%)! Running down the Batterie to 0% gives a good amount of unneeded stress for the Batterie Good to know about the stress on the battery, didn't consider that. Thanks @KingSong69 1 Quote Link to comment Share on other sites More sharing options...
LanghamP Posted April 21, 2017 Share Posted April 21, 2017 Related to this topic; I would recommend getting off, pulling out the trolley handle, and walking the wheel to your destination when you get down low (1 bar?). Because trolleying the wheel is better than carrying it. 2 Quote Link to comment Share on other sites More sharing options...
Carlos E Rodriguez Posted April 21, 2017 Share Posted April 21, 2017 1 hour ago, Maximus said: In an effort to see how many miles I can get out of a single charge, I'm working on draining the battery of my inmotion V8 down to zero. Most of my rides are short, 20 minutes-ish, and roughly 2-4 miles, so it takes me all work week to get there. Anyway, I'm getting close, and just wanted to know if there are any warnings to look out for when riding at a low battery percent? I've been reading other threads, where other wheels get "tilt back" when they are getting low on battery or maybe start to slow down. Do these things happen with inmotion wheels too? When I finally get down to zero % will the wheel just turn off, leaving me with no stabilizing help? Thanks in advance for the help, I'm just trying to prepare myself a little so that I don't end up with a fantastic "face plant" story or worse ... My latest reading on battery life is to charge to 98% and to recharge when 50%. I will try to find the article. I think to remember the battery life increases by 4x if you do that. Otherwise its is a gamble. Deep cycling could last 500 cycles which once a week is like 8 years but I have never batteries last that long. I never deep cycle my laptop battery and their capacity pretty much goes down by 50% after one year. I would recommend recharge sooner than later and don't leave on the charger hours on end. 1 Quote Link to comment Share on other sites More sharing options...
Maximus Posted April 21, 2017 Author Share Posted April 21, 2017 29 minutes ago, Carlos E Rodriguez said: I would recommend recharge sooner than later and don't leave on the charger hours on end. Duly noted @Carlos E Rodriguez. It certainly isn't my plan to run the battery down this low on a regular basis. Aside from trying to determine a rough estimate of what my maximum mileage on a single charge would be, I was also trying to get a better understanding of what my Charge Dr. is giving me for Wh information.... The first time that I charged using the Charge Dr. the lower display showing "Wh" was exactly 234, which is 90% of 260. Considering my V8 is supposed to have 480 Wh I was concerned, but thought that maybe it had something to do with the battery being around 50% when I charged. I would have thought the Charge Dr. would have cut out at 432 Wh, which would be 90% of 480. Anyway, I'm trying to understand all of this battery maintenance stuff, which the Charge Dr. site gives some pretty good info on cycles (here is a good example: http://hobby16.neowp.fr/2016/12/01/voltage-threshold-on-charge-doctor/). After my ride today I think that my percent should be in the 20-30% range, so I should have an opportunity to compare the Wh info from the two charging sessions. Strange, I feel like I kind of hijacked my own thread a bit . 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Pingouin Posted April 21, 2017 Popular Post Share Posted April 21, 2017 (edited) Hi, I have been using lithium batteries for the past 12 years, first in RC flying and in tech stuff, for example I still have a working PSP battery that has been used at least 500 times, it has ten years and it still holds 50% of it's capacity today, or for my first smartphone the Iphone Edge (still holds ok today) fot lithium polymer batteries I have used some for the past 6 years, they still hold about 60-70% of their capacity. I know a bunch of website say it's best to leave the batteries 50% charge (40 to 60%), I always left them from 20% to 30%, I think the lower the voltage, the less harm to the chemicals inside. Another thing is storage, do not leave your batteries in hot temperatures, but leaving them in your room is ok. My recommendations would be: - Try not to charge 100%, 90% is fine, but still charge them to 100% every 10 to 20 cycles to balance the cells (and leave the batteries resting for several hours after the charge is finished) - Do not charge directly after using your EUC, wait at least 2hours (not always possible) - Do not ride immediatly after the charge is finished, wait 20 minutes - Do not ride agressively the first km (and afterwards also if you can) - Regenerative breaking is good, but it reduces the battery life, so try anticipating and no using it too often - Don't go below 20% if you can, and try avoiding going below 8% ever (unless you really need to calibrate the battery) - Under 50% battery, go smooth (some EUC incorporate some kind of speed limiter under a certain percentage, but accelerations are what pumps the most energy) - Try doing a charge cycle every 2 months minimum - Store your battery anywhere from 20% to 50%, never ever leave them fully charged for too long (more than a week) - With negative temperatures, go super smooth, because riding in these conditions will hurt the chemicals more than usual, same thing with extreme hot temperatures Hope this helps Edited April 21, 2017 by Pingouin 4 Quote Link to comment Share on other sites More sharing options...
Maximus Posted April 21, 2017 Author Share Posted April 21, 2017 3 hours ago, LanghamP said: Because trolleying the wheel is better than carrying it. @LanghamP are saying that trolleying with it on and using the self balancing is easier, right? Obviously you can still trolley with it off, but you are saying it's harder in that state, correct? Quote Link to comment Share on other sites More sharing options...
Maximus Posted April 21, 2017 Author Share Posted April 21, 2017 1 hour ago, Pingouin said: Try doing a charge cycle every 2 months minimum Great info @Pingouin! Can you explain what a charge cycle is, though? Quote Link to comment Share on other sites More sharing options...
Carlos E Rodriguez Posted April 21, 2017 Share Posted April 21, 2017 Just now, Maximus said: Great info @Pingouin! Can you explain what a charge cycle is, though? Drain down to 10% and then recharge. dont know exactly. @Pingouin hopefully will explain better. 1 Quote Link to comment Share on other sites More sharing options...
Pingouin Posted April 21, 2017 Share Posted April 21, 2017 32 minutes ago, Maximus said: Great info @Pingouin! Can you explain what a charge cycle is, though? Hi, a charge cycle is counted from 0% to 100%, so for example, if you charge twice your battery from 50% to 100% it only counts for one charge cycle 1 Quote Link to comment Share on other sites More sharing options...
who_the Posted April 21, 2017 Share Posted April 21, 2017 I've (once) in the past drained my V8 battery down to the point where it sounds an alarm and slowly (but aggressively) tilts back and forth rendering it unridable. After that point there was still enough power so that I could push it by the trolley handle. Technically "pushing" the wheel using the handle adds power rather than depletes it, so it seems one could "walk" their wheel a significant distance without running entirely out of power. Knowing Inmotion, my guess is that this behavior occurs with some reasonable buffer of charge yet remaining. 1 Quote Link to comment Share on other sites More sharing options...
Maximus Posted April 21, 2017 Author Share Posted April 21, 2017 45 minutes ago, who_the said: Technically "pushing" the wheel using the handle adds power rather than depletes it, so it seems one could "walk" their wheel a significant distance without running entirely out of power. Makes perfect sense, thanks @who_the! Quote Link to comment Share on other sites More sharing options...
Mono Posted April 21, 2017 Share Posted April 21, 2017 (edited) On 4/21/2017 at 3:37 PM, Maximus said: In an effort to see how many miles I can get out of a single charge, I'm working on draining the battery of my inmotion V8 down to zero. Most of my rides are short, 20 minutes-ish, and roughly 2-4 miles, so it takes me all work week to get there. Anyway, I'm getting close, and just wanted to know if there are any warnings to look out for when riding at a low battery percent? I've been reading other threads, where other wheels get "tilt back" when they are getting low on battery or maybe start to slow down. Do these things happen with inmotion wheels too? When I finally get down to zero % will the wheel just turn off, leaving me with no stabilizing help? Thanks in advance for the help, I'm just trying to prepare myself a little so that I don't end up with a fantastic "face plant" story or worse ... If yours behaves as mine: when the displayed level reaches 5%, you will experience a rather strong tilt-back which forces you to step off. Then you should turn off the wheel, as it will insist in tilting even when you push it. Turning it on again and trolleying home was my strategy then. The displayed level of 5% is probably a real battery level of more than 10% (around 50Wh remain unusable), so I am not really worried about undercharging my V8. Edited May 5, 2019 by Mono Quote Link to comment Share on other sites More sharing options...
Maximus Posted May 3, 2017 Author Share Posted May 3, 2017 On 4/21/2017 at 9:37 AM, Maximus said: When I finally get down to zero % will the wheel just turn off, leaving me with no stabilizing help? Last night I finally got my answer to this question...the wheel alerted me that my battery was too low (you know, with that nice woman's voice ) anyway, the wheel then also went into what I assume is tilt back (?), where the whole thing angled backward and stayed in that position and eventually turned itself slowly off. I was going fairly slow so I was able to step off as this all occurred. I then turned it back on and pushed it in the tilt back position until I got home, which thankfully was less than an 1/8 mile. 2 Quote Link to comment Share on other sites More sharing options...
abinder3 Posted May 3, 2017 Share Posted May 3, 2017 One thing that people have to realize is the % of battery in the app isn't necessarily the same voltage with every manufacturer. I believe that for 20% battery on Inmotion wheels is actually a higher battery voltage per cell than some other manufacturers. The % of battery displayed in manufacturers apps isn't as accurate as the actual voltage of each cell. Inmotion app seems to display a lower % of battery left for a given voltage than most other manufacturers apps do. A third party app that will display the current voltage may be the best way to go. Usually these same apps will also display the % of battery left. Allen 1 Quote Link to comment Share on other sites More sharing options...
Alex91 Posted May 2, 2022 Share Posted May 2, 2022 Hi all. I also have a v8 and I have a question. In the application the percentage of the battery varies quite a lot. After I start moving, it also decreases by 10%, and when I stop after a few seconds it increases by a few percent compared to the value displayed on the move. It's normal. In the past I had a v5f which was very stable in terms of battery percentage. Thank you 1 Quote Link to comment Share on other sites More sharing options...
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