Announcement

Collapse
No announcement yet.

Sparks fly when connecting Battery

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Rodney Bush
    replied
    just received my bbs02 today and have the same issue except no spark the second time. battery was fresh out of the box...charged???

    Leave a comment:


  • JPLabs
    commented on 's reply
    There's a capacitor in there, I don't think you can assume a DVM will give you an accurate resistance measurement, except perhaps if that capacitor is charged up to the voltage the DVM is using? Not sure if/how to do it, my guess would be to start with discharged cap, then hook up DVM and wait for reading to stabilize.

    --

    OP, are sparks really FLYING or did you exaggerate a bit? A shorted motor can send sparks flying, because the connectors vaporize a bit and shoot out white hot metal. So if you saw that, Max is still right, you probably have a short or something.

    But, chargers and batteries do spark when hooked up, frequently, and it's not a fault. No flying sparks, though. Maybe a slightly startling pop and a small, fast spark. You won't see any spark outside the connector, or anything like that, though.
    Last edited by JPLabs; 04-08-2018, 11:58 AM.

  • max_volt
    replied
    Track down the short and whether it is the wiring or possibly the controller.

    Leave a comment:


  • girlpower100
    replied
    what should i do?

    Leave a comment:


  • max_volt
    replied
    That's too low. Do not try to connect.

    Leave a comment:


  • girlpower100
    started a topic Sparks fly when connecting Battery

    Sparks fly when connecting Battery

    My BBSHD throws sparks around when I try to connect the battery (52-58 volts).
    Measured the plus/minus contacts going down to the motor and it reads 1.7 ohms.
    It's the 2500 watt version of motor.
    Is this normal?
    Any ideas why the sparks fly?
Working...
X