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cwarhurst avatar image
cwarhurst asked

Connect multiplus 5000 with 3 x LG RESU 10 Batteries

Hi - I have a multiplus 5000 and 2 x LG RESU Batteries connected, the power available is a little low, can I add another RESU10 battery using the second VE.Can socket. I would connect the 3rd battery direct to the inverter - would the colour controller send the right signals and would the Multiplus work with 3 RESU10

MultiPlus Quattro Inverter Chargerbattery chargingESS
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cwarhurst avatar image cwarhurst commented ·

Help - looking to add another LG RESU Battery to an existing 2 x RESU 10 batteries on the Multiplus 5000 - does anyone have any experience or know how to connect an additional battery into the system - it has a color controller

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Johannes Boonstra (Victron Energy Staff) avatar image
Johannes Boonstra (Victron Energy Staff) answered ·

Hi, I am sorry but cant help you on this one. Please contact the LG dealer for this question.

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mayahill avatar image
mayahill answered ·

Have use used standard LAN cable between the RESU PLUS and the batteries and a modified to Victron? Or all 3 modified?
I had a single RESU10 connected to GX, working fine. Now I installed the RESU PLUS to connect two RESU10 and the DX is no longer seeign the LG batteries.

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ejrossouw avatar image ejrossouw commented ·

Ensure the installations are done as per the latest manual and by a certified installer as warranties cannot be registered otherwise and LG will not honour it either as they announced in 2019.

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ejrossouw avatar image
ejrossouw answered ·

Hi @cwarhurst Two RESU13's and PLUS would be the LG supported way. Anything else will invalidate your warranty. Regardless, I anticipate the CGX can only manage one "master" BMS unless Victron supports more, but not as far as I know. Smart lithium batteries are usually daisy chained with a master connecting to the CGX. For huge banks they again connect to a central master controller. You will also not have space on the GX for the terminator and I think no keep alive signal as consequence. This is obviously untested given it is unsupported by LG and Victron.

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