Had EVE LifePo4 3.2v 310ah. Flames shot up. We got fire out.

[CharlieBB]

I scanned one of the QR codes in your picture with the LiFePOQR Battery app.

Thanks. Getting QR codes for all 16 batteries... I think they are mismatched ages.

 

[CharlieBB]

Considering that the cells you had were made in March of 2020, I don't think this system was working in this configuration for five years. I know this doesn't help you right now, but it can be useful info later for you and others trying to figure out what went wrong.

 

[CharlieBB]

There are wires and power going to AC2. There are no wires and no power.going to AC1. We did not change anything in there!

 

[CharlieBB]

Considering that the cells you had were made in March of 2020, I don't think this system was working in this configuration for five years. I know this doesn't help you right now, but it can be useful info later for you and others trying to figure out what went wrong.

I certainly wouldn’t want to be in a situation with a broken toe, overwhelming heat and no power.

Years ago in my college days we had a house fire because an extension cord was overheating.

Typically batteries don’t do this unless there was a trigger. Replacing cords and upgrading wires as needed could prove useful in preventing future failures regardless of using batteries or not.

Needless to say we are all curious. We never stop learning and if others can learn from this then it could serve useful.

Needless to say glad you and your property are safe! That is the most important thing.

Thank you.

 

[Hedges]

That said, surges are usually very short, like a fraction of a second and so it's possible that your >30A surges (if that's what's actually happening) are short enough to not cause too much stress on your extension cords. But it's a risk and if it happens multiple times every day, over the course of weeks and months, it cause cause enough heating and stress to the wiring

12 awg ampacity is 30A, 10 awg ampacity is 40A. at least with 90C insulation; extension cords would be less.

Relatively short periods at that current would cause no damage at all. It takes a while for copper to heat up.
Repeated hits of current enough to trip a circuit breaker same current rating as wire ampacity will damage insulation - after about 100 times it is shot, from what I've read.

House wiring, 90C ampacity of 30A, breaker rating 20A, an overload of 30A for about 10 to 15 minutes will trip the breaker. In that case, wire was never over-current so not damaged. If wire was actually 20A ampacity, maybe an extension cord with lower temperature insulation, (30/20)^2 = 9/4, a bit over 2x the temperature rise, which would damage insulation.

 

[CharlieBB]

 

[MisterSandals]

View attachment 155846

CharlieBB
I have been following along. Wondering if this ever worked only wired to AC2. I do no have experience with Quattro.
"Looks" like its been this way for years so not what i would look at.

Sorry, out of my experience. I will follow along an chime in with anything i can add.

 

[CharlieBB]

CharlieBB
I have been following along. Wondering if this ever worked only wired to AC2. I do no have experience with Quattro.
"Looks" like its been this way for years so not what i would look at.

Sorry, out of my experience. I will follow along an chime in with anything i can

 

[CharlieBB]

I have only owned it a little over a year, but have been plugged in to 50a campground service with small 50/30amp plug adaptor. I have also run a generator on cloudy days. I wonder now if that was only boosting the batteries and not providing direct current for AC.

 

[CharlieBB]

LFP batteries are as fire safe as wood.
What was the cause of the flames?
Bad Wiring?
Lack of OCP?

OCP?

 

[timselectric]

OCP?

Over Current Protection
Fuse or breaker

 

[MisterSandals]

I have also run a generator on cloudy days. I wonder now if that was only boosting the batteries and not providing direct current for AC.

Your wiring pic showed that the EMS was connected to AC2 and nothing was connected to AC1 where i would expect the generator would be connected.
Can you tell where the generator output was sent? It may have been connected to a different battery charger than the Quattro.

Looking at your pic again. Is there anything connected to the Quattro AC out? Its partially concealed by the red wire.

You mentioned you were working on a wiring diagram. It would be mighty helpful as I think most of us (just me?) are trying to understand how your system is wired.

 

[timselectric]

You mentioned you were working on a wiring diagram. It would be mighty helpful as I think most of us (just me?) are trying to understand how your system is wired.

Not just you.
I would also like to help. But haven't seen anything to go on, yet.

 

[CharlieBB]

Your wiring pic showed that the EMS was connected to AC2 and nothing was connected to AC1 where i would expect the generator would be connected.
Can you tell where the generator output was sent? It may have been connected to a different battery charger than the Quattro.

Looking at your pic again. Is there anything connected to the Quattro AC out? Its partially concealed by the red wire.

You mentioned you were working on a wiring diagram. It would be mighty helpful as I think most of us (just me?) are trying to understand how your system is wired.

Person I purchased it from told me to plug shore power cord onto generator. Did not gave inboard generator. I bought a generator and had to add nuetral ground plug to it.

 

[CharlieBB]

Your wiring pic showed that the EMS was connected to AC2 and nothing was connected to AC1 where i would expect the generator would be connected.
Can you tell where the generator output was sent? It may have been connected to a different battery charger than the Quattro.

Looking at your pic again. Is there anything connected to the Quattro AC out? Its partially concealed by the red wire.

You mentioned you were working on a wiring diagram. It would be mighty helpful as I think most of us (just me?) are trying to understand how your system is wired.

Geni/shore plugs into ems goes to ac2. No dedicated geni connection.
We are moving geni/shore connection to ac1.
Ac out connected to ac panel of trailer.

Sure hope this is correct.

 

[CharlieBB]

 

[CharlieBB]

Wires moved over to AC1. Shore power plugged in. EMS came on with normal readings E0, 60H, L1 0amps- 120, L2 - 117 0amps. Power at Quattro AC1 IN is 120v. Power has been on now for 12 min. Quattro is not powering up!

Is there a reset button or fuse somewhere to check?

 

[shopman]

Pretty sure you need a battery connected to that Quattro or it will sit there like a brick.

 

[CharlieBB]

We have traced most of the wiring to Quattro and are making a schematic.

We can probe power. Also we now know power is connected to ac2 not ac1 input to quatro. Panel is open, so we can verify power getting there.
We found no breakers or cutoff from shore in to ems to quatro?

If there is a knowledgeable Quattro person on board, we could certainly use help!

Thank you.

Wires moved over to AC1. Shore power plugged in. EMS came on with normal readings E0, 60H, L1 0amps- 120, L2 - 117 0amps. Power at Quattro AC1 IN is 120v. Power has been on now for 12 min. Quattro is not powering up!

Is there a reset button or fuse somewhere to check?

Just found the small black switch on front of Quattro... hard to get at and see. It is in the ON position. We have never flipped it. No lights flickering.

 

[CharlieBB]

I may have just found the problem? (One of them?) There is nothing plugged in to the Cerbo but two dangling black cords nearby. Pretty sure the fell out.