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From: Don Y <blockedofcourse@foo.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Solar panels
Date: Sat, 1 Jun 2024 20:32:17 -0700
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On 6/1/2024 6:29 PM, boB wrote:
>>> Not sure how to avoid excessive charge currents into the battery if it can't
>>> take the full solar output.
>>
>> I think you have to be able to "talk" to the module to tell it how you would
>> like it to behave, NOW.
> 
> The MPPT controller simply raises the PV operating voltage above
> Vmp...  At Voc, the current becomes zero. Whatever Vpv gives the
> correct controller output voltage to the battery it is charging.

You have to signal to the controller that the battery is charged;
that it can't (shouldn't) continue to accept charge.