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  1. S

    All dressed up and no go (Qulbix 76R no worky)

    After a long hiatus with my nemesis, I have finally gotten back to work on it. A year ago I was test riding it, literally 5 mins after finishing. In my haste to ride, I neglected to tighten the drop outs and the QS205 wheel went flying past me (literally, ripped all wires from controller and...
  2. S

    84V pack not reaching full charge

    Hi, Been away for awhile getting back into this project. Please forgive me if this is a dumb question I did search... I built an 84V 20S12P pack from Samsung 25R cells. Added BMS. I charged the pack last year during maiden voyage and had a mechanical problem so I put the bike in barn...
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    Looking for advice on my 18650 build so far

    Building a 20S12P pack for my Qulbix Q76R. Followed Quokka build pretty closely. (240) Samsung 25R cells 0.2mm pure nickel sheet Supower 100A BMS 8kw controller from PowerVelocity QS205 motor I've almost done all the spot welding just the +/- connections and BMS. I'm having second thoughts...
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    n00b BMS hookup question

    Hi, sorry if this is an easy one but I did search quite a bit. I'm building a 20S 12P pack for my Qulbix 76R. I took a break from Fall to now and everything I thought I knew (or bought) is now making me scratch my head. Cells are Samsung 25R, controller is an 18F Bluetooth from...
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    20S BMS recommendations?

    Hi, I have read and searched and come up with a few opinions myself. But since I don't consider myself anything close to an expert in this area was hoping you may indulge me with a recommendation. I have a 20S 12P pack I'm building from 240 Samsung 25R cells. They are rated at 20A max...
  6. S

    Qulbix 76R build

    Hi first timer. Figured I would add my build thread. I'm new to ebikes but I've built some fully custom adventure motorcycles by taking street bike frames and engines and grafting on motocross suspension. I have a fully equipped home machine shop so that should come in handy. I quickly...
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    Can a Sorensen PS be used in series w/ Meanwell?

    I apologize if this is an obvious question but I have been searching and reading threads often trying to get a definitive answer. I am planning out my build and assembling ideas in my head about how to go about it. I have a number of lab power supplies my largest being a Sorensen 0-40V 0-20A...
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