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Stingray - Finished the power rewiring — Parallax Forums

Stingray - Finished the power rewiring

DufferDuffer Posts: 374
edited 2010-01-28 21:25 in Robotics
I wanted to use a larger battery pack for my Stingray and decided to rewire things so that I didn't have to keep taking the bot apart to get to the batteries for charging. I decided to use a 6 cell NiMH with a capacity of 4200 mAh. I built a wiring harness to provide a connection for my charger and a switch for Run and Charge modes. The charger connector may look like the wrong gender, but I have a M/M gender changer on my charger's cable (I like having the female receptical on the bot or battery). I have no idea yet how long the battery will last, but I've been playing with the wheel encoders for two days and everything is working fine.

Duffer

Post Edited (Duffer) : 1/14/2010 11:53:13 PM GMT
RunGhgHarness.JPG
648 x 486 - 56K
ChargeConnect.JPG
648 x 486 - 80K
RunChgSwitch.JPG
648 x 486 - 75K

Comments

  • WhitWhit Posts: 4,191
    edited 2010-01-15 18:11
    Looks neat Duffer! I love the 4200 mAh - it is bound to run awhile...

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  • wyzard28wyzard28 Posts: 24
    edited 2010-01-16 07:36
    Beautiful! You just saved me a bit of work. In my case I've a 2000 mAh and a 2800 mAh NiMH which I want to hook up in parallel. Just as soon as I finish assembly. I'm just about to plug in the 6 AA's in and see if the Robot board will recognize my iMac.

    Thanks for sharing!

    _richard
  • CannibalRoboticsCannibalRobotics Posts: 535
    edited 2010-01-16 15:43
    Cool idea. I've been messing with reaching in and plugging in and unplugging the battery pack for the charger, kind of a PIA. A trick I learned with RC helli's was to use velcro to hold the battery pack down. That way you could just pull out the entire pack and replace it with a fresh one. Haven't got there yet though I think I like the switch better.
    Good work!
    Jim-

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  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2010-01-28 21:25
    Duffer,

    You just made my day...I spend some time trying to explain exactly what you did some months back but wasn't convincing enough. You've embraced the very heart of what this kind of thing is all about. Customizing and improving upon the design. If you look at my prototype pictures I had much the same setup although I started with two batteries and then dropped to a single battery. What you have is exactly what's on my R/C airplane and many other R/C devices. It makes perfect sense!

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