Another 'FUN' battery question

(quoted from post at 13:24:17 07/11/21) Well, don't know how [i:f07052c732]fun[/i:f07052c732] the question is but here goes:

Let's say there's a 3-year-old battery. This battery is sitting by itself not connected to a darn thing. After sitting for a few months this way, meter reads 12.7v. Load tester (digital - I don't have the $$ for the good stuff) says it has good capacity. Even other meters all show good voltage.

Now, go to connect this battery into a known good truck with known good electrical, but truck just clicks. Swap out to any other battery and truck fires right up.

So question is, is this scenario possible?

PS - I know the answer already. *hehe*

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(quoted from post at 13:26:05 07/11/21)
Yep the starter is a good load tester for a poor boy...

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(quoted from post at 17:23:49 07/11/21) Typical starter draw is about 150 amps on a gasoline engine. Initial draw can be as high as 300, but not for long.

If you put a battery on an old fashioned carbon pile load tester, you will see that a battery can deliver a really
high initial current that fades down as the load continues.

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