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JKBMS B2A24S15P Readings for Cell 9 in the attached video are the culprit. Whilst charging with above 35 amps to 55.2v (3.45v/cell), the voltage is 'reported' to be widely fluctuating. Other cells also fluctuate but not to the same degree. 'Reported' because 2 different multi-meters across...

Putting final configuration parameters in a new system and noticed a difference in voltage measurements between a Victron SmartShunt and a JK B2A24S15P. Battery measures 53.33v between cells 1-16. (Using two different multimeters.) BMS measures 53.33v. SmartShunt measures 52.89v and manual...

Have completed individual full cycle cell testing for 16 LF280K cells which demonstrate an average capacity of 307Ah (Min 305.3, Max 308.4, SD 1.1Ah). First full charge to 3.65v resulted in about 220Ah charged for each cell. Appears they were shipped at 21% SOC Nominal. On completion of...

Received this cell as part of a 16 cell shipment - no damage on external/internal of shipping box suggesting this dent was there when packed. Suspect it is OK - does not look like it punctured housing, IR & voltage are in normal range. Intend to capacity test this one outdoors just in case...

Have just received a shipment of 8 LF280K cell from Amy at Luyuan. Unpacked first box of 2 cells and noticed they show some convexity on long side and concavity on short side. Interestingly, the convexity on one side not directly opposite convexity on other side. First picture shows top of...

My naturally cautious nature leads me to ponder BMS failures because they are critical to any LiFePO4 battery build and are a single point of failure. AFAIK Mosfet based BMS may/could fail with the Mosfets stuck in a charge or discharge state thereby leading to unpleasant outcomes. Is this...

Happy New Year to all you good people. Planning/designing a Grid Tied ESS with Victron & DIY LiFePO4 to maximise self consumption. This is the current state: (Don't be too critical - the Heat Pump Hot Water was installed whilst I was in Europe & the installer simply replaced a 5kw Tank Hot...

Have requested a DDP (Delivered Duty Paid) quotation from Cassie Wang at Shenzhen Qishou Technology via Alibaba messenger. This is the quote. 16 pieces EVE LF280K total price -- USD 1648 Shipping cost - - USD 390 Transportation mode - - DDP Shipping time - - 55-65 days DDP to Australia Total...

Edit: Mar 2023 to include Victron in thread title. The Plan: 8.65kw PV via Fronius Primo 6kw 2 Victron Multiplus II 48/3000/35 in Parallel with Victron ESS Primo on AC1 Out of Multis Grid on AC In of Multis. These are all approved in Australia. The Battery: DIY LiFePO4 of size to be determined...