Originally posted by Jim Yingst:
No, sounds plausible enough. As a rough analogy, if you've got one person who can lift 160 pounds, and another who can lift 120 pounds, then if they both try to lift a 140 pound object, the first will succeed and the second will fail. Many electrical devices require certain threshold of voltage before they can function at all.
Originally posted by Peter Rooke:
Or could could buy a Battery Tester
Originally posted by Ernest Friedman-Hill:
But of course, we don't live in an ideal world. As the reaction progresses inside the battery, we get lumps, and bubbles, and little bits of gunk that build up; either expected reaction products, or by-products due to impurities. And the electrons have trouble getting past those bits, and so the resistance (nominally) goes up, and thus the voltage (nominally) goes down.
But the things is that there's no formula that governs this: it's not a simple thing anymore. It's dirt and glop and chaos. Yes, the resistance of a dead battery may go up. No, there's no reliable measure by which you can relate resistance to battery freshness.
I think she's lovely. It's this tiny ad that called her crazy:
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