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  1. W

    Power analyzer (inline meter) that measures power in both directions?

    I have this power analyzer: https://www.amazon.com/gp/product/B07PF67T3P It's great, but it only measures power going in one direction (from source to load). Does anyone know of a similar product that measures power flowing in both directions?
  2. W

    Charging several 10S4P 36v battery packs with solar?

    I've got three lithium battery packs built for electric bikes, each a different capacity, from 300 to 500 watt hours. I'm thinking about using them as a battery bank in my RV since my lead acid batteries are about 6 years old now. I've got a few questions for the lithium battery wizards: - I'm...
  3. W

    White putty used in battery packs?

    I really like the white putty commonly used in Lithium battery packs. Does anyone happen to know what that is? In this pic for example: Really handy for sealing up wiring holes in a battery pack. I currently use hot glue but it's a bit stiff compared to that putty.
  4. W

    Usefulness of fireproof bags for 10S3P batteries?

    I'm looking for an explosion proof (or resistant, ha) bag for a 10S3P 36 volt battery, with dimensions of about 15 inches by 4.5 inches (aka 38cm x 12cm). Has anyone found anything that they'd recommend? Ideally buying from Amazon. Was considering this one...
  5. W

    How to charge this battery?

    I found a lithium battery pack in a recycle bin that seems to have a bit of life left in it. At least I hope so, ha. The brand is Jetech, the name is 10S3P, it's 36 volts, and it has two large wires going to an XT60 plug, and three smaller wires (a black, blue and yellow) going to a smaller...
  6. W

    Disadvantages of front wheel drive for ebike?

    I'm considering making a front wheel drive system by installing a hub motor in the front wheel of a bicycle. I see that most, but not all, hub motors are in the rear wheel. I'm wondering what the pros and cons of putting a hub motor in the front wheel would be?
  7. W

    Any tips to power a bicycle with a hub motor from a scooter?

    I have a hub motor that I'd like to repurpose to power a bicycle. I was wondering if anyone had any tips for doing that? Maybe attach spokes to the wheel? Or some other clever method? Pics of the wheel are attached.
  8. W

    Recommendation for a resistive throttle?

    I'm looking for a resistive (no hall sensor) throttle for a brushless motor. It needs to be self-returning to 0. Ideally one that can be mounted on handlebars. I'm seeing a lot of mentions of them in the forum, but no links to any, and I can't find any on Google. Does anyone have any tips?
  9. W

    Lever style throttle to control a non Hall motor?

    I've got this brushless motor: https://www.amazon.com/gp/product/B07D9B6J78 It's controlled with a regular dial style resistive pot. I was wondering if anyone knows of a scooter style throttle that would control it? Something like this...
  10. W

    How to control this motor?

    I recently rescued a very broken electric scooter from the trash, and I'm trying to power its hub motor. The motor has 3 wires going to it (green, yellow and blue) and no other wires, so I gather it's a brushless motor without hall effect sensor. It's a 36 volt system and I don't have the...
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