Question about battery series safety

Discussion in 'General Electronics Chat' started by Ladvien, Nov 29, 2012.

  1. Ladvien

    Thread Starter New Member

    Sep 29, 2012
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    I'm working on a a project that requires around 35 volts--can someone tell me if it is safe to wire a series of these batteries? I apologize if this question doesn't belong here, I'll take redirection :) Their actual voltage is around 7.2v a battery. So, I was going to use 5.
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,986
    745
    Looks ok to me...
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,388
    1,605
    Those batteries look like nominal 9V to me (but I don't read Chinese). In any case, each battery is made from several cells in series, so you are just adding more cells in series.

    It should be fine, but just keep in mind that batteries can supply a huge amount of current into a short, and you have a fairly large voltage there. It borders on the edge of "dangerous."
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,442
    3,361
    Put a fuse in series.
     
  5. Ladvien

    Thread Starter New Member

    Sep 29, 2012
    16
    0
    I appreciate the help. I will add a fuse and try not to blow myself up. I literally know just enough to be dangerous.
     
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