meepmeepmayer Posted March 2, 2022 Share Posted March 2, 2022 17 hours ago, GoGeorgeGo said: I think the best you can hope for is super capacitors with the ability to maintain a rapid tiltback for 200 feet with a 200+ pound rider. So when you accidentally drive into water or there is an error/short of any kind, the electric shocks kills you? Not sure if you thought this idea through... Good mosfets on a good board, good battery packs, good (or any!!) quality control to catch production errors - that must be and is enough. 0/3 so far And even that is somehow overwhelmingly safe and reliable. 3 Quote Link to comment Share on other sites More sharing options...
Popular Post Chriull Posted March 2, 2022 Popular Post Share Posted March 2, 2022 12 hours ago, meepmeepmayer said: So when you accidentally drive into water or there is an error/short of any kind, the electric shocks kills you? Not sure if you thought this idea through... Electrocuting in water is normally only dangerous with appliances driven by mains voltages, which has a voltage potential against earth. With an EUC in water one has to be extremely inventive and unfortionate to manage a current curcuit through the human body - this chance can be safely be neglected. However - with wet body parts i would never ever even touch the old 67.2V. Although DC current is considering deadly above 120V - so one should take care with maintenaince work already with current wheels. 12 hours ago, meepmeepmayer said: Good mosfets on a good board, good battery packs, good (or any!!) quality control to catch production errors - that must be and is enough. +1 @GoGeorgeGo "think the best you can hope for is super capacitors with the ability to maintain a rapid tiltback for 200 feet with a 200+ pound rider." With some 30Wh/km average energy consumption for riding this would mean about ~30wh/1000m*66m~2Wh=7200Ws Energy stored in Ws in a capacitor is calculated as 1/2*C*U². With common maximum Voltage of supercapacitors of about 3V on would need a ~1600F supercondensator bank... So an reserve li ion battery bank for emergency would be more efficient. But if one ignores/gets not warned of an existing limit why extend it for short periods making the wheel much more complicated, bigger and heavier? 5 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted March 3, 2022 Author Share Posted March 3, 2022 I've split some non-EX20S-specific posts about adding capacitors, to the topic below. Let's continue capacitor discussions there https://forum.electricunicycle.org/topic/27020-adding-capacitors-to-improve-performance/ Quote Link to comment Share on other sites More sharing options...
Jean eRide.ie Community Posted March 5, 2022 Share Posted March 5, 2022 On 1/23/2022 at 12:23 PM, Jean eRide.ie Community said: I'm getting one (selling Monster Pro), let's see how it goes. Protecting the corners with these for protecting both the battery and my body in case of accident. I'm not the only one who thought about this "solution", saw this on some Chinese group Quote Link to comment Share on other sites More sharing options...
GoGeorgeGo Posted March 5, 2022 Share Posted March 5, 2022 18 minutes ago, Jean eRide.ie Community said: I'm not the only one who thought about this "solution", saw this on some Chinese group Been planning to just 3d print some bumpers myself. Being a 90 degree edge makes it crazy easy to design and print. My main concern is just how well things will adhere to the rigged sides of the battery case. Worst case though you can take off those big ugly power pads that are screwed on and attach a custom plate to the sides for mounting pads Quote Link to comment Share on other sites More sharing options...
Popular Post GoGeorgeGo Posted March 19, 2022 Popular Post Share Posted March 19, 2022 Finally got my hands on the ex20s high speed! sold my EXN in order to acquire this bad boy, and my first impressions are very good. Not without issues though. it feels very much like the exn under my feet, in terms of agility and acceleration. The kickstand actually works! Not like the crappy v11 one this one works great. The suspension felt very nice in the time it was working. I love how rugged or a design it is, the first full metal construction EUC!!. The bad things though, my god is she heavy. Very heavy wheel is an understatement. First floor or bust. The headlight is garbage, small, little throw, not very bright. And lastly the stock shock is leaking air. After barely 20 minutes it was empty again. I need to play around with it a little and see if maybe just the valve is loose or something but i may be having to replace that shock immediately. First night on it was overall great though! I did about 18 miles last night after getting it setup, but rain today so may take a few days before i get out on it again as it does need some work to waterproof the control board area. Will be plenty of videos on it to come 👍 8 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted March 19, 2022 Share Posted March 19, 2022 Why does it have no batteries? Quote Link to comment Share on other sites More sharing options...
techyiam Posted March 19, 2022 Share Posted March 19, 2022 For those who are interested in learning more about the Begode EX20S, this video may worth a watch. 1 Quote Link to comment Share on other sites More sharing options...
Popular Post GoGeorgeGo Posted March 19, 2022 Popular Post Share Posted March 19, 2022 22 minutes ago, meepmeepmayer said: Why does it have no batteries? The batteries where shipped separately, rest assured it has batteries 🤣 7 Quote Link to comment Share on other sites More sharing options...
Nick McCutcheon Posted March 20, 2022 Share Posted March 20, 2022 12 hours ago, GoGeorgeGo said: Finally got my hands on the ex20s high speed! sold my EXN in order to acquire this bad boy, and my first impressions are very good. Not without issues though. it feels very much like the exn under my feet, in terms of agility and acceleration. The kickstand actually works! Not like the crappy v11 one this one works great. The suspension felt very nice in the time it was working. I love how rugged or a design it is, the first full metal construction EUC!!. The bad things though, my god is she heavy. Very heavy wheel is an understatement. First floor or bust. The headlight is garbage, small, little throw, not very bright. And lastly the stock shock is leaking air. After barely 20 minutes it was empty again. I need to play around with it a little and see if maybe just the valve is loose or something but i may be having to replace that shock immediately. First night on it was overall great though! I did about 18 miles last night after getting it setup, but rain today so may take a few days before i get out on it again as it does need some work to waterproof the control board area. Will be plenty of videos on it to come 👍 Sweet! It's unfortunate your shock might be bad out of the box, but what's new from Begode lol. What dealer did you get it from? I haven't seen it for sale outside of AR or AliExpress so far. Quote Link to comment Share on other sites More sharing options...
Popular Post GoGeorgeGo Posted March 20, 2022 Popular Post Share Posted March 20, 2022 1 hour ago, Nick McCutcheon said: Sweet! It's unfortunate your shock might be bad out of the box, but what's new from Begode lol. What dealer did you get it from? I haven't seen it for sale outside of AR or AliExpress so far. Today i checked the schrader valve on the shock and it did seem to be a bit loose. So i tightened it up and refilled it. Hopefully that was the issue, i couldn't test because it was pouring rain all day and i havnt done any weatherproofing yet. As far as how i got it. I have a friend who helped me acquire it, basically it was through an aliexpress type of deal. Thats why i was able to get what i believe is the first high speed version created 5 1 Quote Link to comment Share on other sites More sharing options...
EUC Sharkman Posted March 21, 2022 Share Posted March 21, 2022 (edited) 23 hours ago, GoGeorgeGo said: Today i checked the schrader valve on the shock and it did seem to be a bit loose. So i tightened it up and refilled it. Hopefully that was the issue, i couldn't test because it was pouring rain all day and i havnt done any weatherproofing yet. As far as how i got it. I have a friend who helped me acquire it, basically it was through an aliexpress type of deal. Thats why i was able to get what i believe is the first high speed version created Looking forward to some impressions from your first few really long rides! Of the 3600 WH wheels I want to buy this year, this EX20s and the MPro are in the finals. I'm guessing suspension is probably pretty similar to the Hero's (faults and all...but maybe upgradeable). My biggest concerns are cooling and top speed, but looking promising so far! Edited March 21, 2022 by TheSlyGiraffEV 1 1 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted March 21, 2022 Author Share Posted March 21, 2022 10 hours ago, TheSlyGiraffEV said: Of the 3600 WH wheels I want to buy this year, this EX20s and the MPro are in the finals. Just curious... why didn't SherMax make your shortlist? 1 Quote Link to comment Share on other sites More sharing options...
EMA Posted March 21, 2022 Share Posted March 21, 2022 5 minutes ago, RagingGrandpa said: Just curious... why didn't SherMax make your shortlist? i love the commander in the 3600wh range, i didn't get it becouse off the axle motor...waiting an update Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted March 21, 2022 Author Share Posted March 21, 2022 1 minute ago, EMA said: i didn't get it because off the axle motor...waiting an update Isn't Sherman Max the answer then? (I don't care about SherMax so much... just seems odd that its debut has been so quiet) Quote Link to comment Share on other sites More sharing options...
EMA Posted March 21, 2022 Share Posted March 21, 2022 1 minute ago, RagingGrandpa said: Isn't Sherman Max the answer then? (I don't care about SherMax so much... just seems odd that its debut has been so quiet) could be, but i want to see it in action first, also the commander is 3-4kg lighter . Quote Link to comment Share on other sites More sharing options...
EUC Sharkman Posted March 21, 2022 Share Posted March 21, 2022 2 hours ago, RagingGrandpa said: Just curious... why didn't SherMax make your shortlist? SherMax has been moving around and is currently in 3rd. I do like the fact that it runs cool (Overheating dropped Commander to 4th), but for my preferences, the lower top speed in comparison to the original Sherman (I do want my next wheel to hit 45 mph drama free), plus any potential rim issues dropped SherMax to 3rd...for now. Suspension on the EX20s has me intrigued enough to keep it in the top 2. Of the wheels though, SherMax and Commander are the only somewhat similar ones. MPro and EX20s are pretty different wheels from them so my challenge is finding the wheel of these that best suits my use case. If the EX20s came with a C30 variant or was 134v like the Master, I think I would have preferred that, but I'll just consider the wheels that are available at the moment. Quote Link to comment Share on other sites More sharing options...
GoGeorgeGo Posted March 21, 2022 Share Posted March 21, 2022 (edited) 20 minutes ago, TheSlyGiraffEV said: SherMax has been moving around and is currently in 3rd. I do like the fact that it runs cool (Overheating dropped Commander to 4th), but for my preferences, the lower top speed in comparison to the original Sherman (I do want my next wheel to hit 45 mph drama free), plus any potential rim issues dropped SherMax to 3rd...for now. Suspension on the EX20s has me intrigued enough to keep it in the top 2. Of the wheels though, SherMax and Commander are the only somewhat similar ones. MPro and EX20s are pretty different wheels from them so my challenge is finding the wheel of these that best suits my use case. If the EX20s came with a C30 variant or was 134v like the Master, I think I would have preferred that, but I'll just consider the wheels that are available at the moment. The ex20s does offer a c30 varient thats what mine is. High Speed. Last i looked thats what alien rides is actually going to be stocking as well are the c30 versions, i noticed it when looking at listings the other day Edit: yup Edited March 21, 2022 by GoGeorgeGo 1 Quote Link to comment Share on other sites More sharing options...
EMA Posted March 21, 2022 Share Posted March 21, 2022 5 minutes ago, GoGeorgeGo said: The ex20s does offer a c30 varient thats what mine is. High Speed. Last i looked thats what alien rides is actually going to be stocking as well are the c30 versions, i noticed it when looking at listings the other day Edit: yup could you put it on a scale pls, i think this wheel should be 42-43kg, not the 47kg listed Quote Link to comment Share on other sites More sharing options...
GoGeorgeGo Posted March 21, 2022 Share Posted March 21, 2022 Just now, EMA said: could you put it on a scale pls, i think this wheel should be 42-43kg, not the 47kg listed If i have a scale i will dig it out and check, i think i have one hanging around somewhere 1 Quote Link to comment Share on other sites More sharing options...
Popular Post GoGeorgeGo Posted March 21, 2022 Popular Post Share Posted March 21, 2022 19 minutes ago, EMA said: could you put it on a scale pls, i think this wheel should be 42-43kg, not the 47kg listed Mines 102 pounds , so 46kg 1 1 2 Quote Link to comment Share on other sites More sharing options...
EMA Posted March 21, 2022 Share Posted March 21, 2022 1 minute ago, GoGeorgeGo said: Mines 102 pounds , so 46kg tnx, huge 2 1 Quote Link to comment Share on other sites More sharing options...
GoGeorgeGo Posted March 21, 2022 Share Posted March 21, 2022 Just now, EMA said: tnx, huge Yeah its heavy as shit. But, thats part of the trade off for having a machine that isnt 50% plastic. I mean the build quality is exceptional for an euc imo. Im sure it could be improved still but all in all its the direction i think most high end wheels should be going. This wheel has officially left the realm of compact last mile commuter and transcended into the league of street worthy vehicle 2 1 Quote Link to comment Share on other sites More sharing options...
EUC Sharkman Posted March 21, 2022 Share Posted March 21, 2022 2 hours ago, GoGeorgeGo said: This wheel has officially left the realm of compact last mile commuter and transcended into the league of street worthy vehicle Yet I imagine it still fits neatly in the trunk of my mid sized sedan so still not too bad! Still no bike rack required. Thanks again for confirming the C30 version from AR! If this wheel ends up delivering on all the promises on paper, that's where I'm getting one. Let me know what your top end speed impressions are, such as where the sweet spot is before the wheel gives you drama. Quote Link to comment Share on other sites More sharing options...
GoGeorgeGo Posted March 22, 2022 Share Posted March 22, 2022 12 hours ago, TheSlyGiraffEV said: Yet I imagine it still fits neatly in the trunk of my mid sized sedan so still not too bad! Still no bike rack required. Thanks again for confirming the C30 version from AR! If this wheel ends up delivering on all the promises on paper, that's where I'm getting one. Let me know what your top end speed impressions are, such as where the sweet spot is before the wheel gives you drama. Its way smaller than a monster pro for sure and id say just slightly wider than my exn, maybe by like 1/4-1/2" or so (just a guess based on how it feels i have not measured) 1 Quote Link to comment Share on other sites More sharing options...
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