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Small Battery Questions

09/05/2016 2:01 PM

I know very little about batteries, so pardon what may be very basic questions. But is it true that all cylindrical batteries (AAA, AA, C, D) are 1.5 volts? So size doesn't matter? If so, is their longevity what differentiates them?

Also, what is it about a rectangular 9V battery that makes it different? Its mass is approximate to two AA batteries, yet it has the voltage of 6 AA's. Under what circumstances are 9V preferred over cylindrical batteries?

And finally, my main question... I have an issue with the coffee in my French Press getting cold before I'm done. I'm going to look into modifying an electric cup warmer (like a little hot plate) and integrate it into the press. Is there a combination of AAA or AA alkaline batteries that would be a reasonable choice to give me 160 degrees F for a certain amount of time? Say.... 50 hours, for example?

(And yes, I know that I could just transfer the coffee to an insulated container, instead)

Thank you.
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dkwarner
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#91
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Re: Small Battery Questions

09/13/2016 12:48 AM

C'mon! You were supposed to show the Squirrel/gerbil/mouse Wheel from this perspective.

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RobertOz
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#92
In reply to #91

Re: Small Battery Questions

09/13/2016 1:31 AM

What am I supposed to do? I can't help it if you can't see the hamster from that angle!
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dkwarner
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#93
In reply to #92

Re: Small Battery Questions

09/13/2016 1:41 AM

Unfortunately, I'm not a Photoshop user, so I can't show you...

I don't do anything to photos that can't be done in Apple's "Photos" program...

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James Stewart
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#78
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Re: Small Battery Questions

09/12/2016 9:42 AM

So then lantern batteries really have many mice on treadmills. C M itsy bitsy feet? M R mice! S A R!

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#95
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Re: Small Battery Questions

09/13/2016 10:38 AM

Mr. Anonymous is probably cackling "HAHAHA I made you cut open a battery! Weeeee!!" (A variation on "HAHAHA I made you look! Weeeee!!)

By the way, everyone... my question was answered to my satisfaction 30-40 posts ago. So I thank you. But I see this thread has taken on a life of its own.

(But I didn't realize Mr. Ed was an albino zebra)
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Oomborrie
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#77

Re: Small Battery Questions

09/12/2016 6:02 AM

It seems the consensus is that the best and most effective use of energy is to just make your coffee when you feel like having a cup. If you in a vehicle use a sigar lighter piwer source to heat water in your mugg with a dump in 12V element and make your coffee.

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huntman10
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#87
In reply to #77

Re: Small Battery Questions

09/12/2016 4:23 PM

I like the pungent flavor of a bucket or two of good ol' Texas Lignite under the pot. Just dig up a little low quality coal every time your coffee is getting cold, and stoke up that pot! The neighbors will probably take note of your self reliance, as well! You ust have to scrape the clinkers off the underside of your pot every few days!

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