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kampfkeks-mrz avatar image
kampfkeks-mrz asked

Multiplus II Charge Control Problem

I've got the following Problem or question:

The system like shown below has been build. Multiplus II, and a BlueSolar MPPT Charger 150/85. There's also a cerbo Controller.

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Configuration is always inverting, first charge battery then send energy to grid. Works nearly, but the battery is never full. While Multiplus doesn't feed energy to grid, there is no charging mode given. If the battery reaches Bulk-Voltage, the charge System changes mode direktly to "Float", Multiplus starts feeding Energy into grid, without Absorption time of an hour.

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Is there any Idea, why this is happening?


Greetings,

Kampfkeks

Multiplus-IIMPPT Controllerscerbo gx
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shaneyake avatar image shaneyake commented ·
What are your mppt settings as this will do most of the charging?

The Multiplus shouldn't be charging your batteries, under normal conditions.
Are you are running ESS?
What type of batteries do you have? Are they CAN bus managed?

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