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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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