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 Robotics / 19565
  RCX and batteries
 
Is the RCX considered a "high-drain" or "moderate-drain" device? If one is using the motors, I'd almost say yes, but how does frequency of use factor into this? Is anyone using rechargeable NiMH batteries in their RCX? What kind of performance to (...) (22 years ago, 24-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
(...) I don't know how those terms are defined. (...) I use NiMH's - they work just fine - but obviously they don't have the capacity of disposable batteries - I'd estimate that they run out in about a quarter the time that disposables do...but (...) (22 years ago, 24-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 (...) If you have a 1.0 RCX, use a power adapter when you can. 9-12V, any polarity will do, even AC. I use a 12V, 500mA, negative-tip adapter from - hehe - a K'Nex set. -----BEGIN PGP SIGNATURE----- (...) (22 years ago, 24-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
are you sure any polarity will work? does it have a rectifier(I think this is what I mean) built into the port? Timothy (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 (...) I'm not sure, but it does have a voltage regulator, and I've *heard* it works even with AC. (BTW, a rectifier meaning a single diode blocks current going the wrong direction. A 4-diode rectifier (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
Hi Guys , Just to let you know that the AC Power Adapter that LEGO supplies has an AC output voltage. You can even get 5mm plug and attach it to a 9V battery clip and use a standard 9V battery to power the RCX. It won't last long but it is a way to (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
(...) [cut & pasted] (...) from - (...) [here it is] (...) port? (...) current (...) A 4-diode rectifier bridge converts AC to DC (and will sort out polarity problems), but it's not constant voltage DC (it's both halves of the AC sine wave above the (...) (22 years ago, 25-Nov-02, to lugnet.robotics)
 
  Re: RCX and batteries
 
(...) Yes, it has a bridge rectifier, I use the 10V AC supply that comes with the LEGO train controllers. ROSCO (22 years ago, 27-Nov-02, to lugnet.robotics)

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