My Lifepo4 Battery SOC went from 44% to 63% in 5 minutes. Is this normal?

[msidani]

I have a 2 felicity 8.7kw lifepo4 batteries connected in parallel.
I also have 2 Growatt 5000 es connected in parallel to the batteries as well.
Each Growatt has 8 panels 550W.
I configured each Growatt to have a max charge current set to 60A.

All past week was rainy and no sun. Today is the first day that the storm is over is considered semi-sunny (with some clouds). Also the tempratre is low. Today sis 8 degrees Celsius.

Today ~ 10:25 am the battery bank SOC suddenly spiked from 44 to 63% in 5 minutes.
Battery voltage remained 53.5 when this spike happened.

Is this normal? Is my battery damaged? Anything I can do to make sure the batteries are still ok?

I attached an image of the SOC, battery voltage, and PV voltage.


Thank you!

 

[time2roll]

I assume with little charging for a week the device reporting SOC decided there needed to be a correction once charging had a significant restart.
I call normal unless this repeats in normal circumstances.

 

[HRTKD]

Battery voltage remained 53.5 when this spike happened.

Battery voltage can remain very flat during the charge process. This is typical of LiFePO4.

 

[Alkaline]

Yeah they do dumb things like this, charge to 100% and it will have a good starting point.

 

[michaeli]

It really depends on HOW you are measuring SoC and what equipment you’re using to measure it. If it is using voltage to measure, then it is totally normal. If you’re using something like a smart shunt then I would be a little more concerned.

 

[Tita]

Hello...l am in Lebanon and l want to buy a felicity lithium battery, attached model, could you please tell me if it is a recycled battery ?
Thanks