 | | Re: External supply for RCX
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(...) Yes - but alkaline batteries drop gradually in voltage throughout their lives - by the time they run out, their volts are below 1.2. NiCd's on the other hand stay at 1.2 volts and dry up much more suddenly...over just seconds sometimes. Dunno (...) (24 years ago, 1-Sep-00, to lugnet.robotics)
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| | Re: External supply for RCX
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(...) quite a (...) compared (...) I regularely run my RCXs on NiMH Sanyo rechargable batteries and they works very well. Voltage is lower, but they're much more current capable then the alkaline technology ones. Ciao Mario (24 years ago, 4-Sep-00, to lugnet.robotics)
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| | Re: External supply for RCX
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(...) The only issue with the standard rechargeable ones is if the motor(s) short the resulting current drain could damage something. I'm sure we've all shorted a rechargeable and had the rubber wire casings melt off from the 'heated exchange'.. (...) (24 years ago, 5-Sep-00, to lugnet.robotics)
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| | Re: External supply for RCX
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The motor driver circuits in the RCX are current limited to somewhere around 500 mA if I remember correctly. The driver chips also have a temperature cutoff, so they will not overheat. You can short the motor with no damage. - pete. (...) (...) (24 years ago, 5-Sep-00, to lugnet.robotics)
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| | Re: External supply for RCX
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(...) Perhaps because rechargeables have a faster initial voltage drop than other types and they feel that could make it seem like the RCX has poor performance or isn't working right. Perhaps. (24 years ago, 6-Sep-00, to lugnet.robotics)
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| | Re: External supply for RCX
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(...) If that is the case with rechargeable batteries, then I stand corrected. I do wonder why LEGO would caution the use of rechargeables if they are safe though... Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 6-Sep-00, to lugnet.robotics)
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