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post #10 of Old 06-20-2007
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Originally Posted by hellosailor
How many times do I have to remind you, I'm not licensed to practice math on the internet?
And it shows...

I agree the numbers don't add up. AFAIK they refer to the cells as 2.2V but the battery as 12.6. SO digging out the old GE Wet Lead are right, they are nominally rated at 2.1 VDC each cell, with a potential of 2.05 to 2.40 volts while charging, and 2.3 to 2.8V while overcharging and gassing at the terminals. But that's for "pure" Pb or PbO2 versus H2SO4 chemistry, and since most batteries add something else into the lead for a variety of reasons, that's also "just" a textbook battery, probably at a textbook 68F/20C also.

GE used to give the book out for free, their part # BBD-OEM-237, to help people spec installations of GE lead batteries.
Too bad you can't get the book for free any more...

(You know, I pay you to catch these errors before I post them, not after. You're falling down on the job.)
I would if you'd PM the posts to me before posting them... If you put your keyboard in gear before you turn on your brain, I can't help you...


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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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