 | | Rechargeable Batteries —Frank Caggiano
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| | | Hello, I'm at the point now where I need to get rechargeable batteries for the RCX. The alkaline's are just now making it anymore. Are Nicads OK or should I go the extra step and get nickel metal hydrides (Ni-MH)? How are radio shack's batteries and (...) (23 years ago, 3-Aug-01, to lugnet.robotics.rcx)
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| | | | | Re: Rechargeable Batteries —Dave Baum
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| | | | | (...) Nicads have a lower cell voltage (1.2 rather than 1.5), so they won't work very well in the RCX. Personally I use rechargeable alkaline cells (e.g. Ray-o-vac Renewal batteries). The downside to rechargeable alkalines are that they don't have (...) (23 years ago, 3-Aug-01, to lugnet.robotics.rcx)
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| | | | | | | Re: Rechargeable Batteries —Juergen Stuber
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| | | | | | (...) I use NiMH and get a voltage between 7.8V freshly charged and 7V at the low end (i.e. slightly higher than NiCd). The lower voltage is not really a problem for me. The motors may be somewhat less powerful, but if you're just playing and not (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx)
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| | | | | Re: Rechargeable Batteries —Jerry Kalpin
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| | | | | (...) Frank, I would *not* use Nicads or NiMH rechargeables. Their full-charge voltage is about 1.25V while alkaline batteries are about 1.55. I have Ray-O-Vac Rechargeable Alkaline batteries. They last several hours of operating time between (...) (23 years ago, 3-Aug-01, to lugnet.robotics.rcx)
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| | | | | | | Re: Rechargeable Batteries —Roger Glassey
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| | | | | | Jerry: What is the problem with the NiMH batteries? the low voltage? Or extra $$ ? Roger (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx)
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| | | | | | | | Re: Rechargeable Batteries —Jerry Kalpin
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| | | | | | (...) Roger, I believe the low voltage is more important. A side issue is the battery indicator that you access through NQC (or Robolab) set up in a scale of 0-9 volts. Fully charged alkalines are 9+ and discharged ones are 6 volts. With NiMH full (...) (23 years ago, 6-Aug-01, to lugnet.robotics.rcx)
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| | | | | Re: Rechargeable Batteries —Shane Seward
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| | | | | Hi Frank; Do you have a 1.0 RCX? If so you can do what I did. I used 3 4.5v battery rods with NiMh (9 total) and a custom wire to power my RCXs. It works great for me because I am using multiple RCXs off one power source (I have removed the RCX AA (...) (23 years ago, 4-Aug-01, to lugnet.robotics.rcx)
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| | | | | Re: Rechargeable Batteries —Anthony DeRobertis
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| | | | | In article <3B69FD3A.3DA7E73A@c...ects.com>, "Frank Caggiano" <caggiano@crystal-objects.com> wrote: I'm surprised no one has mentioned rechargable lithium as used in, e.g., laptops. Rather expensive, but the hold a fair amount of charge. Would they (...) (23 years ago, 5-Aug-01, to lugnet.robotics.rcx)
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| | | | | | | Re: Rechargeable Batteries —Juergen Stuber
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| | | | | | (...) They have a higher voltage of about 3V and are tricky to charge, if you don't do it right they have a tendency to explode. I've never seen standalone cells and charger. Jürgen (23 years ago, 6-Aug-01, to lugnet.robotics.rcx)
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| | | | | Re: Rechargeable Batteries —Frank Caggiano
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| | | | Thanks to everyone who responded to this. As is usually the case on the web there was unanimous consent for ... Only kidding. I haven't yet decided how to go on this. I still have a bunch of alkaline AA's sitting around and with the kids starting (...) (23 years ago, 8-Aug-01, to lugnet.robotics.rcx)
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| | | | | | Re: Rechargeable Batteries —Dave Baum
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| | | | (...) "Definitive Guide" had a sentence or two suggesting rechargeable alkalines. I didn't go into any detail about the tradeoffs, though. I'm still waiting for "Mr. Fusion" :) Dave (23 years ago, 10-Aug-01, to lugnet.robotics.rcx)
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| | | | | | Re: Rechargeable Batteries —Frank Caggiano
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| | | | (...) We'll have to feed it K'nex's, right? :-) (23 years ago, 10-Aug-01, to lugnet.robotics.rcx)
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