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Old 09-07-2010, 10:12 PM
smosher smosher is offline
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I would think that a good digital meter could measure the sag in the dc
when the starter was engaged. You would have to measure a good vs bad battery to get an idea.

You need to make the vdc measurements when the starter is engaged. Amps are used when there's a load, in this case when the starter is engaged. 2 6 vdc lantern batteries connected in series will also give 12 vdc, until the starter is engaged.

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