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  1. tsellers

    18650 battery pack design for a powerbank

    I guess I just made an incorrect assumption based on my own use. I am thinking to use a LiFePO4 for a house battery in my van, and for my 36, 48 and 52V bike batteries I currently just have Li-Ion configurations made from 21700 or 18650 cells. As I have 2 48V chargers at hand, I have one set...
  2. tsellers

    18650 battery pack design for a powerbank

    I see. So are you charging a battery bank for an RV or an off-grid solar system? How many volts?
  3. tsellers

    18650 battery pack design for a powerbank

    Thanks, that's good info to know, especially as it sounds like you were mostly required to figure that out on your own using some trial and error. I've been considering their 18A unit since I started to consider getting a new power supply ayway, and then noticed it had that green battery...
  4. tsellers

    18650 battery pack design for a powerbank

    Thanks for the replies. I was wondering how important it is to use CC/CV charging as it seems the Riden regulator does not provide that at the output connectors. - The same functions that the Satiator provides that regular chargers do not. EG: ability to set charge voltage is apparent, not...
  5. tsellers

    18650 battery pack design for a powerbank

    When I first saw this power supply, I wondered if something like it could perform the same function as a 'Cycle Satiator'. Then I noticed this comment, and I was curious to know how this would influence using any of the Riden regulator units as a charger? I'm guessing that you'd need a power...
  6. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    You could always rebuild your existing one and save a few $$
  7. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    Interesting post patdam. I see the listing has this note, "So our display can't change Max Speed,the defaul speed setting is 25KM/h." I wonder if they mean 25 miles per hour rather than kilometers per hour?
  8. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    I'll ask my contacts who apparently deal with Bafang if sourcing some PCB's might be possible as well, can't hurt to ask.
  9. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    I'd be pretty surprised if the lack of sufficient current is causing your issue, especially on a multi strand harness like that one, so it's pretty slim as a possible problem. As long as all your contacts are clean and not bent it should be fine, and you would have noticed that when you did your...
  10. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    I had a couple of reflections: - the CAD/USD exchange rate is about as good as it's been in years right now. - Continuity is an important test, but it does not measure Ampacity, and a glue patch will not restore the latter. However in the case of your wire it does not appear like the strands...
  11. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    The pinout for the 4 tab battery pack used by Frey for the M600 is illustrated here: https://youtu.be/c-x3YC2Fv2g?list=PLDXT34Ltvhm_luesbIC6dA4Xb05aIU72j&t=1184
  12. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    Been riding my M600 for about a year with no major issues (many minor ones), but in hindsight I'd also do as Wayne counsel's. We actually ordered lots of spare parts with the bike order, but not the motor. Not only would it save on major downtime when dealing with a problem, think of the extra...
  13. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    Very interesting, and good to know. Given the intransigence of both Dengfu and Bafang to help, it makes you think that FLX must have some good stories to tell about how their journey to be able to supply controllers that will work for the M600 unfolded. Thanks a lot for the update.
  14. tsellers

    Wayne’s Dengfu Carbon Fibre FS 27.5” with Bafang M600 (throttle also)

    I tried to PM you, but it appears to me that the message just stays stuck in the Outbox and does not appear in the sent items folder. If you don't see it in your inbox, let me know and I can try again.
  15. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    When loading our 2 heavy bikes onto my generic hitch rack, I found it helps to attach a cargo strap to one of the bikes from the roof rack to a bike and then cinch the strap, transferring some of the weight to the roof rack from the bike rack via the cinch strap. This helps a lot when you go...
  16. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    I think there are lots more than just one malicious store. I've had a number of Ali Express sellers try a few different scams on me. Some are quite convincing, such as the Paypal refund scam. There is a good summary of them on Reddit here (I see scam #001 and scam #030 a lot). With the latter...
  17. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    I have been following the discussion on the payment methods for the Frey Bikes here. I thought it may be worth mentioning that for 2 different bike orders totaling 5 bikes, we made payment directly to Frey, and had no issues in that respect. On our last order, we ordered mid March, shipping via...
  18. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    I can't blame you for not tackling it. I had an old controller from a decade ago that shit the bed. So I bought some Mosfet's from Ali Express and tried to follow the Youtube video from Grin Technologies on how to replace them. I found that it's not that easy to isolate the bad Mosfet, and then...
  19. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    When our rep Grace went on Mat Leave, the same thing happened to us with the new rep. Then I got my daughter-in-law involved. Fortunately she is very 'dialed' and ended up contacting Grace at home while on Mat leave via WeChat. There are lot's of nuances and procedures that you will not...
  20. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    Those straps are a real common strap that come in different lengths. Once you get used to them, you'll find they can be used for all sorts of handy purposes. Just about every store they sells outdoor equipment has them, especially ski shops. Ironically, I just ordered some ski's that will be the...
  21. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    The Chinese like to communicate using WeChat, and the Frey rep's have varying degrees of English skills, but are all on WeChat. Most all Chinese ExPat's use WeChat. If you have any friends that have WeChat on their phone, and they speak Mandarin, you'd make much better progress if you could...
  22. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    There may be a few factors that come into play: - Our last order (and not the first) was about $28,000, so wholesale pricing may factor in. - The above order had those items listed on a purchase order that specified pricing based on the previous order from a year ago. (Purchase orders are...
  23. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    Nor really all that difficult, if I can do it, anyone can: c-x3YC2Fv2g
  24. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    You could buy a few empty battery packs from Frey (about $50.00 each), and then build your own to the spec's that you want.
  25. tsellers

    My Bafang Ultra Mountain Bike! Frey AM1000

    That's for sure! Usually the first fail in the controller is a MOSFET. They are not that hard to replace once you've been able to diagnose. I know there's some folks have had them apart in here, hopefully they can help and get you back riding while you wait for parts from offshore.
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