SOC difference 1st time with 2nd bank

[millsan1]

I just added a second bank of 6 Lifepower4 batteries, brining my total to 12.

I added a Victron Lynx as the bus bar.

Each set is in an EG4 cabinet.

Each set is wired to the Victron with + on top of cabinet bus and - on bottom.

I connected everything at 53% SOC.

I then ran AC charging and brought everything up to 100% SOC, at least according to the 18 kpv.

The lynx has 4 connection points, from left to right. I have the cables from the lynx going from the ends of the busbar to the 18.

I have cabinet 1 (old cabinet) into lynx spot 4, closest to end where cables go to the 18.

I have cabinet 2 into lynx spot 1, furthest from cables going to 18.

All cables are the same size.

18 and EG4 hub are showing 82% SOC. Weird thing is cabinet 1 batteries are around 86% and cabinet 2 batteries are below 80, with lowest around 76.

Why would those batteries drain down first?

I will charge up to 100% again tomorrow and check if there is still a spread.

 

[MisterSandals]

18 and EG4 hub are showing 82% SOC. Weird thing is cabinet 1 batteries are around 86% and cabinet 2 batteries are below 80, with lowest around 76.

Have you compared this to voltage of each battery (measured at the battery)?

 

[millsan1]

Have you compared this to voltage of each battery (measured at the battery)?

Used the eg4 hub to give me each batteries voltage. Checking at the various batteries gives me the whole banks voltage.

 

[Brucey]

It may take a few full cycles (7 to 10?) before your new batteries are fully balanced internally and accurately reporting state of charge.

Reddit - Dive into anything

www.reddit.com

 

[millsan1]

Aaaand this morning all of them are withing 1% of each other at 68%. Maybe I should just stop staring at all the new toys and let them just do their work.