this post was submitted on 10 Jan 2025
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[โ€“] [email protected] 15 points 2 weeks ago (1 children)

I think the charge controller counts the amount of energy that has passed through it.

[โ€“] [email protected] 11 points 2 weeks ago* (last edited 2 weeks ago)

You're probably mostly correct. Some of them do literally count that, but (to my knowledge) most measure voltage as a battery with lower charge usually outputs less and vice versa.