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  1. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    Cheers Roman, that's very interesting , awesome design , Very nice equipment , There a guy selling a pcb based sandwitch for 9 cells at $130 on Conrad.fr/digikey electronics, only difference is that it's got a plastic shell, lol, put em on conrad at 25 lol
  2. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    I understand Korishan and Oberfail. I did notice that V...zend had hidden every photo of the metals inside their equipment in all the sales material. Grazie Italianuser! I studied some recyclable fuses here, it's just un idea stravagante, it would be as durable as a car fuse and reusable...
  3. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    Those are awesome pictures, cheers for the information!!! nice crafting. I figure that I can help people who want to build an array using 26650 and 32650 lifepo4 in just 2 days of work rather than 8 months, at a cost of less than welded lithium, and the owners need only buy new batteries in 12...
  4. BatGroupCraft

    Hub motors on a reverse trike freighter.

    Hmm yes I think that the controller would become confused when the two wheels change sequence a bit on turnings, the hall sensors on one hub will be at different times compared to the other, so two controllers would be necessary. You can run two controllers from one throttle so that's ok. I'm...
  5. BatGroupCraft

    Hub motors on a reverse trike freighter.

    I think all motors are phased in a sense, if they are single phase they are still pulsed so that the next forward force is happens in front of the magnetic field, and then it can be switched off and wait until the magnetic field is ready for another forward force. by the way, if you want to post...
  6. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    OK i am learning that powerwall builders have different technology than EV builders, I don't understand your specialties very well. I wrote the FAQ off the top of my head, OK i'll be more precise thanks: LG MJ1 on my ebike: Density gravimetric theoretic = 261.00 Wh/kg Lead Acid gravimetric...
  7. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    The top cover can't use a hinge! the springs are incredibly strong! 20x15 1KG springs is 300KG of downforce! try getting a hinge lid on that. They're primarily aimed for helping people in India and Vietnam that live in these conditions and swim across the pacific, so the lid is designed for...
  8. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    Hi, Thanks for the suggestions! 1) flecked cells: The video has studs of nickel for contacts, I can swap those with tumbleweed balls of wire compressed into a disk shape, so it's like braided disk which adapts to flecks. Flecks are a hassle for everyone and the 18650s are nickel-coated steel to...
  9. BatGroupCraft

    Ebike battery

    I think it would work fine. It's not the absolute ideal rig, using good fuses it will be good. Sanyo was bought by Panasonic btw, so i think they are the same chemistry.
  10. BatGroupCraft

    Hub motors on a reverse trike freighter.

    I think that the performance of brushed and brushless is fairly similar, because the power goes straight to the copper wires just as fast in a brushless motor without using the graphene rods, and then the magnetic field is the same in both designs.
  11. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    Hey HBPowerwall! thanks for the point of view! I have been building batteries since 2003 and hitting them with rocky roads, letting them fall sideways from fairly high up, I only want a box that is good enough for the kindof intense use i'd make of it, and at a price I can afford (I am a...
  12. BatGroupCraft

    Harvard Scientists Holy Grail of Battery Technology

    Haha! that's cool!!! I was inspired once when I read "The holy grail of weldless lithium" on another forum, i researched this easy lithium build tech:, sorry I forgot illustrations of the BMS. View: https://youtu.be/g4Aw9zxtOv4
  13. BatGroupCraft

    The EV gas can

    Woah Tinkerer, that's very courageous. MH1 are awesome, I was suprised to find that NASA selected the MJ1 as the best when they compared batteries for jovian missions. That many batteries is beyond my imagination for welding, I expect you have a pretty amazing welding rig. Please check out my...
  14. BatGroupCraft

    Recyclable Lithium Box, lets you build batteries in 15 minutes. Crowdfunding technology

    Pre launch video for a new technology via crowdfunding :) Hi everybody, I am a big fan of powerwalls and home arrays of lithium. Do you think it will be OK if I post this technology to the discussions forums? Please sign up on the project home page if you want to watch the launch day as it...
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