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  1. IamIan

    Walking Tractor

    If you have trouble getting satisfying performance .. Your low rpm & high torque / power operation is a good theoretical fit for a Transverse flux motor design .. they excel at being able to do (direct drive without transmission) very low RPM with high torque / power / and in that operating...
  2. IamIan

    Epack Wheel build

    FYI Although mine wasn't a DIY device.. I have used my Electric Unicycle (EUC) in the same way .. to carry ~250Lbs of weight for me , while I easily walk / run / etc beside it .. like ~1lbs of effort for me to move ~250 Lbs of gear .. up or down a hill , at any speed I like .. I thought of it...
  3. IamIan

    Looking for hub motor for regen purposes

    Soo .. unless I'm missing something. A = Adding regen braking to existing mechanical brakes .. does NOT "dramatically reduce the real performance of your brakes" .. adding regen braking to existing mechanical brakes is likely to improve the vehicles braking performance. B = Adding regen...
  4. IamIan

    Looking for hub motor for regen purposes

    Wasn't the reversing torque issue resolved by the ebike motors that started using torque arms to lock it in place ??? In order to know it is a greater maintenance penalty .. ie A > B ... one would have to know what the values of both A and B are ... Would you be willing provide me the...
  5. IamIan

    Looking for hub motor for regen purposes

    Chalo I'm a little confused ??? Justin @ Grin has posted a video , in which he claims the exact opposite of both of your claims about adding regen braking. Chalo : 1 = "will not reduce total maintenance" 2 = "dramatically reduce the real performance of your brakes" Justin = will reduce...
  6. IamIan

    Combining Power Sources for Peak Vehicle Efficiency

    Just an additional thought about the potential of the Wind Turbine (ventomobile) portion. For a wind turbine to be part of the vehicle itself .. not a more conventional stationary turbine that charges a battery for the vehicle to use later. The penalty in aerodynamics and rolling resistance...
  7. IamIan

    Combining Power Sources for Peak Vehicle Efficiency

    Just putting out a (fun to me) thought (all old stuff) about combining numerous different high efficiency vehicle power source themed vehicles power sources. Others thoughts / experiences are of course welcome. Starting with Reduce: A small and light vehicle , big enough to meet the majority...
  8. IamIan

    LEF Enclosed eScooter

    If helpful .. Here are also two basic videos I made about it :
  9. IamIan

    LEF Enclosed eScooter

    I bought it new directly from the OEM .. EVmobility which is in the Netherlands .. They crated it up and shipped it directly to my house here in RI (USA). Their web site = Over EV MOBILITY - EV Mobility If you do a web search for "EVmobility LEF" you should get a variety of hits .. pictures...
  10. IamIan

    LEF Enclosed eScooter

    here are some pics showing the 80/20 top roof perforated vinyl and the lid stay open.
  11. IamIan

    LEF Enclosed eScooter

    I forgot to include 2 other mod/tinkering details , I've already tried. Both were for trying to reduce greenhouse effect in the LEF on hot sunny summer days. 3M makes a film intended for automotive use , that reflects 99% of UV and IR , but is still clear to 90% visible light & optically clear...
  12. IamIan

    LEF Enclosed eScooter

    Just passing along an FYI (for those few who might be interested) about a slight oddity I got. A one person bicycle/low speed enclosed e-scooter I got. Model Name = LEF OEM = EV Mobility (Based in Netherlands) Actively being produced for retail = Not that I know of .. just a few so far have...
  13. IamIan

    Could someone help me figure out this HONDA BMS?

    not yet 100% .. but .. For anyone who has one of those OEM BMS 12s boards , and wants to put it to some use. Sense they come 'included' with the $265 for 1.1kwh LTO module .. it's not a bad deal .. battery cells and cell level voltage monitoring...
  14. IamIan

    Could someone help me figure out this HONDA BMS?

    FYI A little bit of progress with 1st gen Honda Insighter's using them for PHEV conversions. https://www.insightcentral.net/threads/honda-fit-lto-bms-discussion.125085/ Some BMS board swapping is available if you still want / need non-duplicates.
  15. IamIan

    A123 AMP20M1HD-A Battery pack kit

    As requested .. Attached are some pics of the two 24s kits .. and the initial dry fit of the two of them into the modified 2000 Honda Insight IMA battery case .. Will be adding aluminum fins between cells .. which will fill the remaining side to side gap in case. Project is not yet 100%...
  16. IamIan

    This is how A123 care about quality control

    "May" does not = will "May" does not = promise to Tomorrow I "may" offer someone a PB&J sandwich. That does not mean I will ... that is not me offering the sandwich. If I don't offer the sandwich that still completely fits with what I said I "may" do. I think this approach of yours is counter...
  17. IamIan

    A123 AMP20M1HD-A Battery pack kit

    1st Got my two recent 24s kits a little while ago .. :mrgreen: ... absolutely beautiful .. coodoos/props. :mrgreen: - - - - - What are others' thoughts on folding the battery tab around to increase the surface area in contact between the two tabs? A bit of added hassle and complication ...
  18. IamIan

    a123 20ah decipher date code puzzle

    As mentioned on the other thread .. the initial 2 characters are always SH .. the 3rd character has only been seen as one of 4 options ... A , B , C , D SHA SHB SHC SHD
  19. IamIan

    A123 20AHr Pouch Cell Battery Build & Info Thread

    Keeping in line with the code from the other 56 cells I have ... and other cell serial #s I've seen floating around the web ... using the above as an example. My guesses are bellow ?? but they are just guesses. SH = Location code of production A = the quarter of the year ... all the cells...
  20. IamIan

    Can Loopwheel use HubMotor?

    No ... $ to high , but the idea has some appeal. The mid-drive would be a nice option to remove the double complexity of having the motor in the loopwheel itself ... sadly I don't have funds to burn either... just a thought exercise for fun.
  21. IamIan

    Can Loopwheel use HubMotor?

    Although I agree with the concept of low practicality ... introducing other problems ... etc. To answer the question of 'why' ... #1 Because I was curious I don't see why not ask , talk , or think about it ?? #2 Compound benefit -- Niche The 'Loopwheel' concept can be added for additional...
  22. IamIan

    Can Loopwheel use HubMotor?

    I did a quick search and didn't notice relevant hits. Does anyone have any experience or thought on combining the principle of the Loopwheel with a small Hub motor ? - - - - - - - My first thought ... Aside from the added complexity and cost (of course) ... is that , it should be a viable...
  23. IamIan

    A123 AMP20M1HD-A Battery pack kit

    Fair enough. Note. Bellow Is not trying to convince anyone of anything , nor criticize anything nor anyone ... Just explaining myself a bit is all. For an equal Volume, yes. It varies of course for different Alloys , but Here is a crude example I got years ago. By weight Aluminum is more...
  24. IamIan

    A123 AMP20M1HD-A Battery pack kit

    Out of curiosity. Have you yet ( or ever intend to later ) test/quantify how much of a difference in conductivity this will make?
  25. IamIan

    A123 20AHr Pouch Cell Battery Build & Info Thread

    Just sharing / passing along some testing data. One aspect that seemed interesting to me ... is the minimum sustained / trickle current rate for the A123 20Ah cells. There are some people who insist that LiFePO4 cells can not sustain a slow trickle charge rate ... but I see a problem with...
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