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peac avatar image
peac asked

MultiPlus-II: cut-off low battery parameters

Hello,

i'm using a MultiPlus-II 24/3000/70-3 with 2p2s lead acid batteries (24V system). I've just measured a voltage of 22.8 V (without load) and i wonder that there is no "low battery" warning (red LED) or a shutdown? This is 11,4V at one single battery (that is quite low..).

I don't have a connector cable, to take a look at the programmed cut-off voltage and the dynamic cut-off paramters. Could someone tell me the default parameters of the Multiplus II (cut-off voltage and low-battery-warning)?

Thanks a lot!

Klaus

Multiplus-II
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4 Answers
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

You should get your self a MK3-Interface asap.

The default settings are very low.
Alarm at 21.8V and shut-down at 18.6V.

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chinaka avatar image chinaka commented ·

I have multiplus 24V 1200va and with my MK3 I changed the cut of voltage to 18.6V because I have a Tesla battery that’s 6S.


however my inverter keeps shutting down at 19V, even after I changed it to 18.6v.

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Jmarc avatar image
Jmarc answered ·

Not 100% with the Multiplus, but in the Quattro, which I assume is similar, those limits can be adjusted by the User through Ve-Config or other programming tools.

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Warwick Bruce Chapman avatar image
Warwick Bruce Chapman answered ·

Do you have a GX device? If so, use remote VE.Configure and check there parameters on the inverter tab

Also; please consider using a battery balancer to keep your series strings in balance. You just need one for the 2s2p bank.

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peac avatar image
peac answered ·

Thanks for replying!

No, i don't have a GX device.. But, yes, i'm using the victron balancer ;-)

Ok, I just bought a MK3 cable to adjust the settings. The defaults are really to low - victron should notice this in the manual!

Cheers!

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