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  1. dequinox

    Ebay Kastar 12v 12AH SLA-cased LiFePO4 - AVOID

    This is just a notice to communicate my results of having purchased a group of kastar ebay lifepo4 batteries. I had purchased them as a potential replacement for an electric lawnmower SLA battery. They have a similar form factor, and are much lighter, and supposedly have a BMS inbuilt. I...
  2. dequinox

    Curved Downtube Hailong Battery Mount

    I'd been trying to figure out a way to mount this hailong pack to my RBF Cruiser (Root Beer Float, see this build thread), and there wasn't enough room on the seat tube, and I didn't want to hang it upside-down on the top tubes. Instead I came up with this little doodad that allowed me to...
  3. dequinox

    First satisfied customer

    Did an afternoon BBS02 build. First paying customer. I'd say he's happy with it.
  4. dequinox

    Turnigy Accucell 8 Button Replacement

    Hello everybody! I have an old accucell 8 in need of new tact button switches, but don't know quite where to find them. These are those press-fit buttons, so I'm wondering if maybe they are a custom part and not a standard off-the-shelf. Please take a look below, and let me know if you know...
  5. dequinox

    Ping battery, Dead?

    I've not got a great sense for what is an acceptable difference in cell voltages for LiFePO4, and was hoping a battery guru could quickly weigh in on whether it's time to recycle (battery is 15 y/o... lol). I've ridden with this thing a few times over the last year without a problem, but when I...
  6. dequinox

    Xtracycle rear cassette problem

    Not too many people are watching my build log, so I wanted to post this problem specifically: https://endless-sphere.com/forums/viewtopic.php?f=6&t=101548 See the last post. The 7-sprocket cassette on the rear motor I have would cause the chain to rub on the frame. Any suggestions? I thought...
  7. dequinox

    "Steer Tube" Alum. Weld Repair

    Not strictly e-bike related, but I could use some input from frame-builders here. For reference this is a giant expressway. I ended up cracking my folding bike's "steer tube", which by this term I mean it's the telescoping/folding tube section which press-fits/glues onto the folding hinge...
  8. dequinox

    Lipo Charging Box

    Just a quick project that I completed in less than an hour... easy to do if you have access to soft fire brick. I acquired a free metal file box, and had some fire brick laying around from my blacksmithing activities, so I whipped this up: Eventually I'll put some pass-throughs in the side...
  9. dequinox

    Xtracycle Build Log

    I acquired a giant frame a while back (probably over 2 years ago, $15), with the intent of incorporating it into some sort of cargo-bike build. It's steel or chromo, and is rather large (maybe 20" seat tube). Well today I spotted this little gem: So I went, I saw, I haggled down to $140 (the...
  10. dequinox

    New York to legalize ebikes?

    It appears legislators at the state level have done so, but the city still will retain the right to ban them: https://www.google.com/amp/s/nypost.com/2019/06/17/new-york-legalizes-controversial-e-bikes-and-scooters/amp/
  11. dequinox

    "Acceptable" 8S BMS for 18650s

    So I have quite the quantity of 18650 cells, and I'm trying to build my first 8S8P battery from them, and I'm not in it to spend over ~$20 on a bms, but it is also the simplest solution for my wife to charge her bike. Plug & Play. I'm looking for a state-side warehoused option from ebay...
  12. dequinox

    Welding Technique for 7075 Alum.

    For those of you in the frame building business: https://newatlas.com/welding-aa7075-aluminum-alloy/58449/ I thought it was interesting!
  13. dequinox

    Retrofitting an old Sachs IGH

    All- Not everyone is following my build thread on a Giant simple, so I had to break this question out: How do I retrofit this Sachs IGH I bought for my build with a shifter and click box that are compatible? From what I can tell by reading articles online, it is supposed to be compatible with...
  14. dequinox

    Giant cruiser budget build

    This is just a build log for a budget bike. So far the componentry is thus: - Giant "Simple" Cruiser, pictured at the end: $55 - Go-plus FT444 kit on amazon... about $145 - Donated 48V LiFePO4 battery from an Angel Investor of sorts some years ago (Rassy). If you see the photo you'll...
  15. dequinox

    Harbor freight lithium??

    I seriously doubt the 12000 Ah spec... but has anyone torn one of these apart yet...
  16. dequinox

    Indianapolis!!

    I haven't posted for a while, but I'm in Indianapolis of all places (from Oregon...), and I'm curious if there is a great E-bike venue/shop/persons (?) I could meet up with this Thursday evening. I will be leaving friday morning. A quick google search puts a few places on the map... but I'm...
  17. dequinox

    Flat belt drives?

    I was brainstorming stupid ideas for ebike non-hub drives, and came across an interesting woodworker's channel... Matthias Wandel (engineer turned woodworker, or visa versa...). This fellow has build a plethora of wooden machinery, but among his creations is this flat-belt driven wooden bandsaw...
  18. dequinox

    A local E-scooter deal... Advice?

    Does anyone recognize this scooter? The guy says "make offer" but I have no reasonable answer for that. I'd appreciate any help. I suppose the shite photo makes it a bit of a challenge, but any help would be appreciated.
  19. dequinox

    Razor e200? repair/modification

    Hey y'all... I picked up a slightly defunct e200 (I think) and the thing has a busted "controller" (really it's just a relay w/some extra bits. The shitty sla batteries seem ok, and the motor checks out. I have a brushed controller from one of those tnc type scooters but I'm not sure if it works...
  20. dequinox

    Used Makita pack teardown

    I recently acquired 1000lbs of laptop batteries, but have yet to really start the teardown and recovery of 18650 cells from those. Before I got those, however, I got about 8 or so makita + other tool packs and started tearing those down. I'm starting this thread to cover that battery build...
  21. dequinox

    Stupid Injury

    If there's one thing I've been able to count on myself for over the years, it's to get myself injured in not necessarily serious, stupid ways. So my nicad battery crapped out on the HIV bike, so I put an old SLA pack on there to use. I have Anderson connectors on it and they appear to be worn...
  22. dequinox

    HK Nanotech on sale!

    Seems legit....
  23. dequinox

    *Dusting off the 1000lb of laptop batteries

    UPDATED 10/30/17 It's been a year or more, so I decided it's time to dust off this project. Building a battery finally, 12s8p. I will monitor with cell-logs and split the pack in half when charging/balancing with two Lipro chargers. _ _ _ _ _ _ _ 5/14/16 I've tested the idea that cells in...
  24. dequinox

    18650 Ebay deals, reasonable?

    I'm a little new to the 18650 building concept, but have an offer from the seller here for 45 LGABD11865's for $100. I need a second opinion before I drop money on this... anyone?? Works out to about $0.20/Wh by the way.
  25. dequinox

    Turnigy Orange Can Outrunners

    I'd hate to rehash this if it's already been discussed, but am I missing something or did the large-sized low kv orange can Turnigy motors disappear off hobbyking? It looks like all they have now in that similar size range is the Rotomax series. Any insight?
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