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Unread 15-05-2003, 19:50
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Quote:
Originally posted by AllenH
Is it possible to setup a series of AA batteries with enough juice to run the robots? Of course, they would be in a nice little package when you have the hundereds that you'll prolly need to run it.
Somebody check me on this. (Remember, I'm a programmer, not an EE. )

At 1.5 V* per AA cell, you would need 8 AAs in series to get 12V. And at 2850 mAh* per AA, you would need more than 6 parallel 8-battery series to equal the 18 Ah of the Exide batteries. So by my calculation, you would need a minimum of 56 AAs. I'll leave it up to someone else to engineer a package for all those batteries.

I have a feeling though, that this still won't get you the instantaneous current you may need to be fully equivalent to the gel cell Exides. Any comments, anyone?

*The 1.5V, 2850 mAh are Eveready's advertised specs for their Energizer Advanced Formula Alkaline AAs. This is not an endorsement. It just happened to be the first Alkaline AA specs I found on the WWWeb.
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Greg Ross (The Grammar Curmudgeon formerly known as gwross)
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Last edited by Greg Ross : 16-05-2003 at 00:57.