EVE LF280K orientation

grassybreakfast · Sep 15, 2022

Hello! First post here. Just ordered 16x Grade B LF280K cells to make a 48V pack.

Now I'm thinking about how to arrange them to minimize floor space, and as part of that, I need to figure out if they can be stacked on their sides.

I've seen previous discussion on that on the forum, and seems like it just comes down to "whatever the manufacturer says". Unfortunately the official documentation does not seem to mention orientation at all.

Does anyone have any authoritative information on orientations allowed for these cells?

Thanks

Richard_C · Sep 18, 2022

Second post here - and was looking for that answer too. 2 stacks 8 high on their side fits the space I have nicely - but I can't find any information either.

featherlite · Sep 18, 2022

A while back somebody posted this:

Richard_C · Sep 20, 2022

I found a post on an EV forum where they had tried to get this info - they couldn't get anything in writing - but were told the same as above - only upright or short side down only.

meetyg · Sep 20, 2022

Looking at this thread:

LIFEPO4 Smoke and Fire Dept

Thought this would be good to share. Ive been adding solar and building battery banks for the past year. I am a commercial electrician but the battery building is new territory. I has this 310AH 16s battery operating just fine with an Ant BMS. Luckily had it in a metal box and in the garage...

diysolarforum.com

I think that just to be on the safe side, you shouldn't put too much weight (2-3 stacks) on the cells.
I'm not saying that this was the reason for that fire, but common sense would be that you don't want much pressure on the sides of the cells.

grassybreakfast · Sep 20, 2022

featherlite said:
A while back somebody posted this:

View attachment 112440

Yeah I've seen that, too. It's just hard to verify with the manufacturer for some reason.

meetyg said:
Looking at this thread:

LIFEPO4 Smoke and Fire Dept

Thought this would be good to share. Ive been adding solar and building battery banks for the past year. I am a commercial electrician but the battery building is new territory. I has this 310AH 16s battery operating just fine with an Ant BMS. Luckily had it in a metal box and in the garage...

diysolarforum.com

I think that just to be on the safe side, you shouldn't put too much weight (2-3 stacks) on the cells.
I'm not saying that this was the reason for that fire, but common sense would be that you don't want much pressure on the sides of the cells.

They are tested with 300kgf clamping force though.

meetyg · Sep 20, 2022

grassybreakfast said:
They are tested with 300kgf clamping force though

True, but on the wide side.

Zucca · May 2, 2023

In the LF280K product specification I have (LF280K-72174 version B, see attachment), there is nothing regarding the mounting orientation.
If it would be critical because of the electrolyte touching the plates, they surely would have drop a line in the document.
I mean they specified the clamping force and forgot to tell the mandatory and super important correct mounting orientation?
I don't buy it.
Anyway I sent an email to Amy asking for clarification... will keep you posted.

PS: Planning to build up a 16S bank, two horizontal 8s strings laying on long side one on top the other.

Zucca · May 3, 2023

Just got it from Amy

Hello

Just make sure the insulation make well is no problem, no matter install them vertically with the terminal on the upper side are both works

Thank you very much
Amy

as expected, make sense to me.

SilverbackMP · May 3, 2023

Zucca said:
Just got it from Amy

as expected, make sense to me.

Perfect Chinglesh and I am not even fluent (I am in Kanglish).

Zucca · May 4, 2023

Yes, I took two years of Chinglesh when I was on college.

anyway

----- Original message -----
From: Docan-Amy
To: CZ
Subject: Re: Mounting orentation for EVE LF280K?
Date: Thursday, May 04, 2023 04:18

Yes, that is correct

thanks
Amy

CZ 于2023年5月4日周四 10:43写道：

Hi,

Just to be 100% sure,
Orientation does not matter as long the insulation is good, right?

Thanks!

Click to expand...

There is no liquid dancing free in a LiFEPO4, you can orient it and mount as you wish.
Just make sure to not create pressure spots in the battery case which could compromise the insulation.

EVE LF280K orientation

grassybreakfast

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Richard_C

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featherlite

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Richard_C

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meetyg

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LIFEPO4 Smoke and Fire Dept

grassybreakfast

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meetyg

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Zucca

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Zucca

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SilverbackMP

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Zucca

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