Lynx BMS, Cerbo GX, and Multiplus II

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tim-sv-always asked Sep 23, '23

Lynx BMS, Cerbo GX, and Multiplus II

I just updated my Multiplus firmware to the latest version that gives me the option of selecting Victron Smart LiFe04 batteries (which I have). When I do that, it sets the "Configured for VE.BUS BMS" option under the Charger page on my MP. When I apply that configuration (remote through VRM console), my MP goes into low voltage alarm, and displays a VE.BUS error 15. It seems to reboot 3 times before it stays shutdown. When I look in my MP settings through the Cerbo GX my VE.BUS BMS version is --. I haven't done a full restart of my Lynx or Cerbo GX after applying the new MP firmware (those products are also up to date). Any suggestions?

multiplus ve.bus

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Answer 1 · 2023-09-26T06:46:31Z

Stefanie (Victron Energy Staff) answered · Sep 26, 2023 at 06:46 AM

Hi @Tim SV-Always,

In VE.Config, click the Charger tab and then click Battery Type. There, you choose Lithium Iron Phosphate (LiFePo4) batteries. Do not use the Victron Smart Lithium batteries, that is only in conjunction with a VE.Bus BMS, as it says in the text. Ensure the box for Configured for VE.Bus BMS remains unchecked.

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tim-sv-always commented · Sep 26, 2023 at 12:17 PM

Thanks. I assumed the Victron Lynx SmartBMS qualified as a VE.Bus BMS given it's connectivity to the batteries and the Cerbo GX.

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