Voltage Drop Issue

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mgallup asked Jul 5, '21

Voltage Drop Issue

System runs fine during the day when solar panels are getting sun. Voltage maintained at around 23.2 volts when under load running fridge and 12K mini split. When the sun goes down the system voltage drops and system shuts off.

Can't figure out what I may be missing in system settings.

System specs:

8 x 400 watt solar panels, wired in series and parallel.

2 x Victron SmartSolar MPPT Tr 150v / 60 amp

Victron Energy Lynx Distrbutor

Victron Multiplus 3000VA 24-Volt

6 x 100 amp hour Battleborn batteries wired to 24 Volt configuration

voltage

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Answer 1 · 2021-07-05T17:41:19Z

Alexandra answered · Jul 05, 2021 at 05:41 PM

@mgallup

You will have to individually check all your batteries. I suspect you may have had a few shutdown on you. What is the load of the 12k mini split fridge?

The voltage you are describing suggests you batteries are also not being fully charged to the 14.4v each that they need. In a 24v system that is 28.8v and floating at 27.2v. with the pv you have installed during the day you should easily reach that even under load.

https://battlebornbatteries.com/faq/

2 |3000

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