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A VERY Basic Question

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dmmartindale:

--- Quote from: Sierra on July 12, 2023, 05:23:14 pm ---1) I have an energy source with 3Ah of capacity (assuming it's all usable and we have a constant voltage)
2) A meter reads current of 1.5A

The units above would then imply a run-time of 2 hours.  Correct?

--- End quote ---
Yes, that's correct.

(Just be aware that a lead-acid battery that says "3 Ah" doesn't mean you will have 3 Ah at the 2-hour discharge rate.  The battery is 3 Ah at the 20-hour discharge rate, and probably less than 2 Ah at the 2-hour discharge rate.  And if you want the battery to last a long time, it is best not to discharge below 50%, meaning the useful capacity for you might be 1 Ah for a "3 Ah" marked battery.

Fungus:

--- Quote from: Sierra on July 12, 2023, 05:23:14 pm ---As an example:

1) I have an energy source with 3Ah of capacity (assuming it's all usable and we have a constant voltage)
2) A meter reads current of 1.5A

The units above would then imply a run-time of 2 hours.  Correct?

--- End quote ---

Yes.

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