question

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alex-2 asked

MPPT on float

f9c329ec-8640-428c-be35-f85ea0dcd0a2.jpeg22e2f770-9bf8-41a6-aa46-8fd2b9272900.pngb867c6b5-57c9-4341-939b-59e81b0cbc8f.pngHi

I have a 150/70 MPPT connected to 4 175w panels. It’s been working great but now my batteries are at 70% and it’s on float only delivering 80w, despite over 80v at the panels. This means that the batteries are nett discharging at around -5A.

If I turn the charger off and on again it goes to bulk and puts 20-30A in then drops straight to float.

I have the recommended settings on the charger

Am I missing something in settings somewhere?


MPPT Controllers
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1 Answer
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kevgermany answered ·

Looks like you need to increase the float voltage. Battery voltage is effectively float voltage in your settings.

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