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johnny-brusevold avatar image
johnny-brusevold asked

BlueSolar MPPT 100/30 and bulk mode

Why does BlueSolar MPPT 100/30 go into bulk mode every morning, even though the battery voltage is high above the float voltage?

There are no high current starters that bring that voltage below the set float and bulk threshold of 0.1

MPPT Controllers
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klim8skeptic avatar image klim8skeptic ♦ commented ·
Wat does your mppt's history show?
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pwfarnell answered ·

I thought that the MPPT started a new charge cycle when it started up in the morning, it does not remember the state it was in when it stopped charging the previous evening. If the battery voltage is below the absorption setting when it starts then it will go into bulk or absorption. I do not believe that there is any check against the float voltage at start up. The bulk threshold only applies once the controller is in float.

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johnny-brusevold avatar image johnny-brusevold commented ·

You are probably right in your assumptions, but hoped it was not so.


Is it possible to use node-red to switch the mppt charger on and off at set voltage?


If not, I can connect the battery to the input on mppt :)

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pwfarnell avatar image pwfarnell johnny-brusevold commented ·
Can't help with node red.
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