this post was submitted on 10 May 2024
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Technology

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[–] [email protected] 83 points 3 months ago (2 children)

But capacitors aren’t batteries. Batteries store chemical energy. Capacitors store electrical potential energy. Electronically they behave much differently.

[–] [email protected] 25 points 3 months ago (1 children)

Yes they do… including not holding a charge when the differential drops too far.

The real wins are in battery-backed capacitors. Charge the caps fast, then let them keep the batteries topped up.

[–] [email protected] 21 points 3 months ago (1 children)

That's what I do being off-grid. I have my battery bank then a series of Supercaps to essentially act as an on/off ramp//drawbridge and temper quick demands. Kinda like an inverse soft starter so this is suuuuper interesting to me.

[–] [email protected] 5 points 3 months ago

Do you have a link to a guide on his to set this up?

[–] [email protected] 7 points 3 months ago* (last edited 3 months ago)

Only for certain types of capacitors. In practice they can overlap quite a bit, especially with common aluminium electrolytic capacitors (these form & dissolve complex aluminium oxide & hydroxide layers on the plates).