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  1. E

    Wanted Lg chem or Other Name Brand li-ion pouch cells preferably matched. Minimum 15ah

    Should i be concerned if my volt cells are 0.01 diff when discharged ? With spim08hp they were 2v diff. And i balanced the spims every cycle
  2. E

    Wanted Lg chem or Other Name Brand li-ion pouch cells preferably matched. Minimum 15ah

    Can’t find Chris’s spreadsheet do you have it bookmarked by chance? Has anyone here made anything like it? Its awesome I'm going to make one on google sheets and share. People can contribute.
  3. E

    Wanted Lg chem or Other Name Brand li-ion pouch cells preferably matched. Minimum 15ah

    Yes check out my youtube video. https://youtu.be/A4ayry1iSeU AZ lithium added a metal strap to resist bulging. Not sure what the full pack has for this. The module dropped right in. I am very happy with it. Ive never balanced it in 5 years. I get 0.01 v diff at 50v and 0.001v diff at 67.2v. I...
  4. E

    Wanted Lg chem or Other Name Brand li-ion pouch cells preferably matched. Minimum 15ah

    The gen 1 volt are a tad low on energy density and volume, but could be okay for razor dirt bike.i have a Gen 2 60v 16s 3.1kwh i got for $550 shipped from AZ lithium i think he still has a few of them. I agree a full pack will be best bet. Ive seen some under $2k gen2 on car-part. Id make some...
  5. E

    Wanted Lg chem or Other Name Brand li-ion pouch cells preferably matched. Minimum 15ah

    Looking for LG chem or other name brand pouch cells li-ion with low miles (car packs) or low cycles. Looking for pouch cells Tested Matched (similar IR and capacity) often case with cells from same packs / modules West Coast USA preferred but anywhere else in US okay too. $100 kwh...
  6. E

    Wanted Lg chem or Other Name Brand li-ion pouch cells preferably matched. Minimum 15ah

    Looking for LG chem or other name brand pouch cells Matched (similar IR and capacity) often case with cells from same packs / modules $100 kwh or less.
  7. E

    My Chinese E-Scooter

    Thanks for advice. Where do you measure temperture from? I hear people say measure at the axle if your controller does not have a temp probe inside of it. I measure mine on the phase wire where the motor connects to the controller. Probably too far from the motor to get an accurate reading of...
  8. E

    9c Hub Motor Temperature Limits

    I never thought of that next time I ride I'll check that out. I've been measuring temperature at the phase wires near the controller and I stay bellow 50 Celsius. You think I can push it up to 60 Celsius if my hub motor is still under 65cel/150F?
  9. E

    9c Hub Motor Temperature Limits

    Hey where do you have your probe mounted externally? Would a non contact IR type be a good idea attached to the swing arm pointed straight at the windings with a few mm gap?
  10. E

    My Chinese E-Scooter

    What diameter is your hub motor on your scooter/moped? Mine is 8” on 10” wheel. I can only run 7kw for 15 minutes before the phase wires are heat to 60 celcius. Im thinking of some 0w oil in there or maybe glue on some ugly heat sinks as a last resort. I can achieve 80kph @67v with flux...
  11. E

    Seal hub with silicone?

    @ Dui I’ll look for some grade 12.9 m4 bolts and seal it with silicone. I was amazed when I opened it and there was no rust after 10 years with frequent rain riding. Btw I posted a question to your moped thread.
  12. E

    Seal hub with silicone?

    Sorry to revive an old thread, but I'm worried about the silicone being too weak. There is a lot of sheer force going through eighteen 1/8" screws. Is there a strong glue for this purpose? Silicon is pretty soft. Something between silicon and jbweld would be perfect.
  13. E

    XPD: open-source keywin e-bike lab replacement

    Just left scorgforge looking for the apk. Now I know it needs to be manually compiled. So you've both managed to edit and upload a profile? Can you download one too? I really could use this. Please apk and bluetooth tutorial. Id pay for the effort to avoid forehead surgery, and furniture...
  14. E

    Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

    Went with your advice and got a 2016 chevy volt gen 2 16s pack. Its been reliable so far. I need 18s or 20s module or multiple 6s modules for more voltage and top speed. Right mow I rely on my controllers flux waakening speed boost but it kills my range. With the 16s module I see 0.05v...
  15. E

    Recent buy Chevy Volt battery module concerns

    Eee291 Did you disassemble the pack yourself? If so how did you keep the tabs fully intact? Thanks.
  16. E

    Throttle dead zone fixes

    Another simple solution is to open the throttle and glue some rubber stopper on the return stop ledge. Takes some testing with the wheel in the air. Ive been running it two years with no issues. Ive also adjusted the magnet positions inside for less throttle twist range. Avoid the $5...
  17. E

    Xiaoxiang Android app password

    Thank you.
  18. E

    Xiaoxiang Android app password

    Do the sellers of these bms provide the android app or is hosted somewhere online? I've tried Google search and Play store with no luck.
  19. E

    Recent buy Chevy Volt battery module concerns

    I plan to replace the threaded rods holding it together and add a handle at which point I'll inspect the pouches. How thick should the cells be? As far as condition, I just received the module so I have no real idea. The only thing i know is that it was from a 2016 Volt with 26k miles. I...
  20. E

    Recent buy Chevy Volt battery module concerns

    Attached. Bulge is 4.3mm/.17" on side in photos and 2.4mm/.09" on the other side. I think it needs more compression. When they are assembled together in the Volt pack the middle modules compress against each other. This must be one of those middle modules. Should I add thick insulated plates...
  21. E

    Recent buy Chevy Volt battery module concerns

    Do the gen 2 Chevy Volt modules have a natural bulge to them on the ends? or is this a sign of internal damage? Just recieved a module and would like to test it, but don’t want to risk possible further damage if the cells inside are compromised. Seller claimed 24k mikes on the car. Voltages...
  22. E

    Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

    Saw a zero this morning. Looked pretty quick. Im still pretty set in the leaf modules. Pretty good bang for the buck.
  23. E

    MOTOR PORN !! EMRAX 228 teardown !!

    Is there a cached download of the site the original poster linked on the Emrax?
  24. E

    Xingyue X1/SeeyesDMB09A moped LiFePo4 pack build

    Recently I made a pack with These LiFePo4 cells. Check out my pictures here. I made modules in 6s. each stack is 16s and I have 4 stacks for a 60V 22ah pack. I am using the SLA "on board charger" ( I just keep it in the storage box) and a SDT SC620 with PSU to balance. No BMS because...
  25. E

    22.2V 24ah 60/120C LIPO $30 Bulk Thoughts Concerns

    No I really want to but haven't had the time to work on the MX project. I was distracted by my 3kw moped LiFe pack build for awhile, but im still very interested in these. I asked a friend in Hong Kong to inquire about them and they quoted him $200 each..He wrote to them In English so I bet if...
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