Timeline for Is it possible for series connected battery cells to provide different currents?
Current License: CC BY-SA 4.0
6 events
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| Sep 28, 2020 at 17:09 | comment | added | troubleshooter | @Circuit fantasist Nice link! I love it. I was contemplating if it was intended for lead acid cells. I was debating if 'back leakage' at close to conducting voltage would drain small cells excessively. Also, would not work on Lithium, as they DECREASE voltage as they finish charging (I assume you know that too). -Could be a triggered melt-down! --- "Ah, my battery's done charging, the zeners just melted!" LOL EDIT: OOPS! guess it would simply just not charge past that point; or if not just right, would overcharge and ruin the cell. | |
| Sep 28, 2020 at 6:16 | comment | added | Circuit fantasist | troubleshooter, I saw this idea in 80's, in an old German book photos.app.goo.gl/AaapkH2ouMkDgCKN8. I agree with you... but the simplicity of this idea is attractive. I use it as another example of "current steering" (besides the well-known differential pair). | |
| Sep 28, 2020 at 5:46 | comment | added | troubleshooter | @Circuit fantasist I don't know if that would work well; have you seen it done? I think it would be difficult to find the exact combinations to equal exactly the 'full' voltage. The voltage of a low cell and full cell can be very close to the same, depending on battery type. (A selected zener might be about the only practical approach.) I'm not saying this won't work, I'm just skeptical... | |
| Sep 27, 2020 at 15:53 | history | edited | troubleshooter | CC BY-SA 4.0 |
punctuation, and credit to other correct answers
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| Sep 27, 2020 at 8:40 | comment | added | Circuit fantasist | A simple solution of this idea is to shunt each cell of the battery by some kind of diode - LED, two Si diodes in series, etc. The LED solution will also indicate the cell state. | |
| Sep 27, 2020 at 5:00 | history | answered | troubleshooter | CC BY-SA 4.0 |