Forums General Problem Solving
  • Topic: custom lithium batteries

    Back To Topics
    (0 rates)
    • August 29, 2019 12:00 PM EDT
      • Ormond Beach, Fl. 32174
         
      • Posts
        712
      • Thanks
        3
      • Thanked
        317

      custom lithium batteries

      Any one built their own lithium battery power packs, I/m running out of room in may tender section of my Mason Bogie and really only have the boiler left and was considering building one to fit in that area, Bill

    • August 29, 2019 12:32 PM EDT
      • Easton , Massachusetts
         
      • Posts
        4,396
      • Thanks
        1,604
      • Thanked
        505

      Check with Don Sweet @ https://www.rcsofne.com/

      Remote Control Systems of New England
      79 Abbott Rd
      Penacook, NH 03303
      Phone: (603) 321-1347
      E-Mail address: donsweet@rcsofne.com

      ____________________________________

       My u-tube  My Vimeo

      The light in the tunnel might not be an engine , but a light in the caboose of my own train on my Roundy Round Rail Road !    My empire is complete...I think...

    • August 29, 2019 1:21 PM EDT
      • Vail, Az
         
      • Posts
        4,923
      • Thanks
        1,274
      • Thanked
        993

      These people will do custom packs too.

      https://www.batteryspace.com

      ____________________________________

      John

       

      The older I get, the less I know, please don't make me prove it.

       

       

    • August 29, 2019 1:27 PM EDT
      • Hendersonville, North Carolina
         
      • Posts
        247
      • Thanks
        38
      • Thanked
        58

      Like John said. Battery space has skinny 14.8 v cylindrical shaped packs that might fit in your boiler. 

       

      Doc

    • August 29, 2019 2:21 PM EDT
      • Fort Myers Beach & Annapolis, Florida & Maryland
         
      • Posts
        2,152
      • Thanks
        63
      • Thanked
        319

      Bill Barnwell said:

      Any one built their own lithium battery power packs, I/m running out of room in may tender section of my Mason Bogie and really only have the boiler left and was considering building one to fit in that area, Bill

      Bill,

      I make my own.  18650 cells (typical size) are readily available on Aliexpress.com, often intended for e-cigs, but I have been buying 4 at a time (14.4V) for around $10. While 18650 is most common, there are lots of other sizes, mostly shorter/smaller, and some have tabs for soldering.
      The same site has 1,2 or 4 cell battery holders, plus they have protection boards so you don't over- or under-charge the batteries.

       

      For a specific location like yours, I'd look for the tabbed ones so you can make up an odd-sized pack.  The protection board doesn't have to be near the batteries - just make sure it is between the batteries and the other electrics.

      This post was edited by Pete Thornton at August 29, 2019 2:22 PM EDT
      ____________________________________

       

        Pete

    • August 29, 2019 3:27 PM EDT
      • Charlottesville, Virginia
         
      • Posts
        384
      • Thanks
        6
      • Thanked
        59

      Hobbyking.com may have what you want, you can search by length, width and height (and a bunch of other parameters too like chemistry, mah, cells, etc).  I've used their page to find batteries that will fit into smaller spaces.

    • August 29, 2019 5:17 PM EDT
      • Elverta, CA
         
      • Posts
        380
      • Thanks
        2
      • Thanked
        56

      Bill,

       

      Generally user interaction with actual assembling, I.e., soldering Lithium Ion cells is NOT recommended. While cells with "tabs" can be soldered as a rule they are generally spot welded by battery pack assembler/packagers (FWIW cell manufacturers do NOT off battery packs, just loose individual cells).

       

      Can you share the dimensions of the area your confined to? What voltage is desired?

       

      If you don't have any luck finding what you need let us know, I can help with one off welded battery packs.

       

      Michael

       

       

       

       

      This post was edited by Michael Glavin at August 29, 2019 10:57 PM EDT
    • August 29, 2019 8:26 PM EDT
      • Candlewood Valley, Connecticut
         
      • Posts
        13,228
      • Thanks
        1,030
      • Thanked
        696

      I made this custom split pack for my Shay.  3 cells and the protection board in the boiler and one remote cell in the air tank...

      ____________________________________

      www.cvsry.com www.cvsry.com

    • August 30, 2019 10:05 AM EDT
      • Ormond Beach, Fl. 32174
         
      • Posts
        712
      • Thanks
        3
      • Thanked
        317

      That is some determined engineering, how much voltage is each cell?

    • August 30, 2019 4:34 PM EDT
      • Candlewood Valley, Connecticut
         
      • Posts
        13,228
      • Thanks
        1,030
      • Thanked
        696

      Bill Barnwell said:

      That is some determined engineering, how much voltage is each cell?

      Standard LiIon 18650 cells, 3.7 Volts each.  The 4 cell pack is 14.8V fully charged.

      ____________________________________

      www.cvsry.com www.cvsry.com

    • August 30, 2019 7:14 PM EDT
      • Ormond Beach, Fl. 32174
         
      • Posts
        712
      • Thanks
        3
      • Thanked
        317

      Jon, thanks so much for the information I have ordered the rail boss 4 and door charging circuit board, basically because it was on sale and available, I will have to measure the area very carefully because at least 1/3 of the boiler is taken up by the support bracket for the boiler so there isn't a lot of room left. Certainly would like to put everything into the engine but considering the size of the tender body I might be looking at a trailing car but being as this will be my passenger car engine I have first in line behind the engine a baggage/rpo car so it shouldn't be a problem, Thanks again so much for the reply, Billside view of engine and cars  

    • August 30, 2019 11:30 PM EDT
      • Elverta, CA
         
      • Posts
        380
      • Thanks
        2
      • Thanked
        56

       

      Jon,

       

      Great idea splitting up the cells to make all fit. That said, that's a lot of wires bunched up with the single cell?

       

      Michael

    • August 31, 2019 9:35 PM EDT
      • Candlewood Valley, Connecticut
         
      • Posts
        13,228
      • Thanks
        1,030
      • Thanked
        696

      Michael Glavin said:

      Jon,

      Great idea splitting up the cells to make all fit. That said, that's a lot of wires bunched up with the single cell?

      Michael

       

      Thanks. I don't really recall how that test pack was wired. I think there may have been two extra wires for the balancing port on my charger for the initial pack charge.  The final install only had two wires between the single cell and the board.

       

      EDIT To add:  In that first pic, the pack B+/B1 wires are also tucked over by the single cell adding to the spaghetti confusion.

       

       

      This post was edited by Jon Radder at August 31, 2019 9:37 PM EDT
      ____________________________________

      www.cvsry.com www.cvsry.com

Forums General Problem Solving

    Icon Legend

  • Topic has replies
    Hot topic
    Topic unread
    Topic doesn't have any replies
    Closed topic
    BBCode  is enabled
    HTML  is enabled

Add Reputation

Do you want to add reputation for this user by this post?

or cancel

Ads by Google