Power in Flux
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Thread: I see a Lithium battery dead end looming -- have you figured out the workarounds?

              
   
   
  1. #21
    Old EV Racer EVcycle's Avatar
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    Quote Originally Posted by BaldBruce View Post
    P.S. I built such an interface PCB for my own bike if someone wants a DIY project or advice on how to do it.....

    Yes please!!!!
    EV Ed
    Never let being a responsible adult get in the way of passion and curiosity.
    Motenergy.com
    Ev album 2456, 2458, 2457, 2681, 3456, 3630

  2. #22
    o_O
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    Me 2! I only have 1 CellLog but plan to add more later.

  3. #23
    SMPS Engineer BaldBruce's Avatar
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    PCB2.jpgPCB4.jpg
    Here is a picture of the front and back side of the "KISS my BMS" PCB. Works with up to 3 cell loggers. LED indictes when the alarm has tripped. Relay is for interfacing to charger and controller. Runs on 12V. Latchs relay until power is reset so charger can't cycle.

    I'll post the schematic and layout on Monday. My files for that project are on a laptop at work. It could easily be enlarged to work with higher number of cell loggers or a larger relay for bigger chargers. (Mine is a 72V 4 amp charger system, so this size was great for me.)
    I have not failed. I've just found 10,000 ways that won't work.
    Thomas A. Edison

  4. #24
    Old EV Racer EVcycle's Avatar
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    Very cool! I just want it for a LVC alarm.

    Thanks!
    EV Ed
    Never let being a responsible adult get in the way of passion and curiosity.
    Motenergy.com
    Ev album 2456, 2458, 2457, 2681, 3456, 3630

  5. #25
    Senior Member SplinterOz's Avatar
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    Bruce, Yep I was aware but thanks for the reminder. The ones I ordered are the really cheap ones not usb data logging. I would like a copy of your arrangement as I would have had to create my own

    I have the 8S model so I might have to modify your layout for the 9 wires. Do you have an overall schematic of your setup it would be really handy.

    Thanks

  6. #26
    Senior Member larryrose11's Avatar
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    Quote Originally Posted by Skeezmour View Post
    Geez I wish I know of a BMS that did all this....oh wait
    Have some updates on the site about the new items in the line up. More to come very very soon.

    Gene
    Gene, Im in the dark here.
    What web site? If your a business owner, perhaps put a link in your signature?

  7. #27
    teddillard
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    Gene's with Manzanita: http://www.manzanitamicro.com/

    ...gonna have to add him to the ranks of coy bitchdom with Mark and Tony.

  8. #28
    Senior Member Skeezmour's Avatar
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    Hey I'm low key thats all

  9. #29
    Status-free and luvin' it
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    sweet, now that I know Gene is with Manzanita, I can annoy him with questions before I place an order for 150 headway cells.....

  10. #30
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    Speaking of LiFePo4 prismatic cells, has anyone noticed that Electric Motorsport has stopped selling Thundersky batteries - which they were promoting as the latest and greatest thing to power electric vehicles not so long ago? Now they are offering GBS batteries, with LiFeMnPo4 chemistry - and they come with their own BMS system and matching charger. Not cheap though. Prices range from $2,290 for a 72V, 40Ah pack to $4,522 for the 100Ah pack. A 60Ah pack is somewhere in between.

    So does that mean the TS batteries have followed in the footsteps of Hi Power batteries? Soon to become collector's items?

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