Distribute batteries across Lynx

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Fideri asked Sep 30, '23

Distribute batteries across Lynx

Hello,

According to Wiring Unlimited, all power sources should be distributed across the busbar. Right now, I have 4 lithium batteries, 2 MPPTs and 1 Quattro (soon to be 2) across a custom busbar. I now want to switch to a Lynx hence my dilemma.

According to various Victron documents, the batteries should be on one side and the chargers and inverters on the other of the Lynx Power-in and the Lynx Distributer. In my situation, I can't follow the recommendation of Wiring Unlimited in that case.

Question is: can I put 2 batteries on the Power-in and 2 batteries on the Distributor and distribute the other equipment across the 2 components accordingly?

Fideri

lynx distributor busbar

2

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klim8skeptic ♦ commented · Sep 30, 2023 at 10:06 AM

@Fideri you forgot to mention f you have a battery monitor.

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Fideri klim8skeptic ♦ commented · Sep 30, 2023 at 10:31 AM

@klim8skeptic Yes, I have a Cerbo right now drawing power from one of the four lithium batteries. I plan to move that to the busbar. When I get the Lynx, I plan to connect the Cerbo to the protruding bits on the left. All the 4 batteries have internal BMS communicating with the Cerbo.

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Answer 1 · 2023-09-30T10:29:43Z

Sarah answered · Sep 30, 2023 at 10:29 AM

Hi @Fideri Splitting the batteries will mean uneven charge/discharge profiles. This is best to be avoided as it will mean the batteries closest to the load will be discharged first. It also makes it difficult to monitor state of charge as you would normally have a shunt (battery monitor) between the load and batteries.

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