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I assume that having those 2 battery packs not perfectly balanced ( first pack is charging faster than second one, thinner wires from battery pack 1 to battery pack 2, thinner than ones from inverters to batteries) is inducing this oscilating effect. I noticed firts battery bank is charging...

Back to you, I found the cause -> loose 200A fuse (inside mechanism) on the battery. Best Regards

Hello everybody, I just received my 17 cells from DOCAN ( L280K), but I noticed one of them is having a sort kind of strain on the foil of the vent. There’s also a kind of sweet smell coming from that spot, but there are no substance leakeages from the cell. By the way, when i’ve tested them...

Thanks for support, you're right, it's more clear now for me!

Thanks.

Other issue I've been observed these days is that when I'm charging the car(7.2 kWh) and mppt's are in float mode, the smart shunt reading is displaying a low charging/discharging current (to keep 53.6V float voltage), but in fact the real current (charged discharged) from battery is arround...

Hello, I’ve got this configuration ( Eve L280K + JK BMS + growatt inverter). I’ve setup OVP=3.345V and OVPR=3.320V and charging curent 15A. Everyhing works well(Even charging my electric Kona from the battery. My questions are related to OVP and OVPR values, because up to 90% the BMS is...

Hi, I'm using 2 Growatt's SPF5000ES in parallel (1 phase out) and charging 2 packs of 48V (LF280K) with JK BMS. Bateries are in parallel as well. GW2 is currently charging battery banks with bulk voltage of 54.2V, which is working fine. But when it enters to float mode( 53.5V), there are some...

Hello to all, seems that after BMS & Growatt parameters update(~11:00) on your recommendation, my system start to work as I was expected from the begining. Thanks

One is for backup, i’ll do 16S + JK BMS + Growatt 5000. But the smell is worrying me afterall…

I’m in Europe, no warehouses in here….

OVP & OVPR yes, to the JK BMS. So, when battery is discharged it will draw power constantly up to OVP (3.345V ~ close to 90%) and afterwards cycles between OVP and OVPR begin. Growatt inverter is supplying the battery with 55.1V charging & floating and the rest of the job is done basically by BMS.

You're right, could have been there for Growatt, data sampling is one very important aspect.

Thanks for useful information.

Thanks!

Hi, I'm having this Victron configuration : 2x Multiplus II (5000VA) single phase ( parallel) + mppt rs450/200 + cerbo gx + Lifepo4 560Ah + smartshunt which is working good. I've activated DVCC function in Cerbo GX, with a low 26A battery charging current, but when I'm having a transition from...

It's a bit strange because I previously had 2 Growatt's(SPF 5000es) in parallel and I didn't notice any kind of voltage or current overshooting in terms of battery charging. May be due to different software control and may be due to high frequency inverters.

I'll try once more to connect/disconnect high load under float to observe the behaviour.

Can be somehow adjusted/solved ?

Thank you for the details, I guess in the end it will not matter so much as I'll be close to 1260 Ah.

There’s no pressure or bubbeling on the vent, I’ve separated it from the rest, but the smell is still present. I would say it smells like a 2-3 on a 1-10 strong smell scale.