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ag123 avatar image
ag123 asked

MultiPlus Compact 12/1600/70-16 not charging.

Hello


Have upgrade on my system with SmartShunt and MultiPlus Compact 12/1600/70-16.


MultiPlus Compact 12/1600/70-16 not charging battery ,what im doing wrong?


Thanks

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multiplus ve.bus
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klim8skeptic avatar image klim8skeptic ♦ commented ·

Have you noticed that the multi is reporting a battery voltage of 14.64v?? Is this correct?

That is above the multi's charge setting of 14.2v. Hence the multi wont charge. How did the battery voltage get this high? What batteries?

A few things, use the SmartShunt for your battery monitor. Un-enable Soc monitoring with the multi. Set the SmartShunt up properly, BMV tutorial.

In the inverter tab, set up the DC input low shutdown, DC input low restart, DC input low pre-alarm, to suit lithium values.


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ag123 avatar image
ag123 answered ·

Hello

Yes ,about 14.64V ,it a strange ,how to fix this? this probable is primary reason.

Batery is REDODO

https://www.redodopower.com/products/self-heating-redodo-12v-200ah-lifepo4-battery

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djsmiley avatar image djsmiley commented ·
What voltage does the smartshunt and the battery read?


if they all read 14.6V, the battery is full, and probably some other charger is charging over the 14.2V set in the multiplus.

If the battery reads a lower voltage, check wiring and fuses for voltage drop (bad connections). Especially if you have the cheap automatic breakers, those care crap and should be removed instantly.

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ag123 avatar image
ag123 answered ·

Now battery is completely dead,can compare MultiPluss and shunt reading,must start generator.

There is no other charger at night time.

Between battery and Multpluss and MPPT is Victron Distribution without brakers.

Till today have separate 50A Victron charger , thats works.

Something not OK with MultiPluss.

Thanks for answers!

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kevgermany avatar image kevgermany ♦♦ commented ·
Could be the BMS disconnecting the battery due to over voltage.
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