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I have 8 prismatic 280Ah cells on order for a system to be installed on a sailing yacht. I keep changing my mind between 2 separate batteries in parallel or a single 2P4S arrangement. I realise there are pros and cons between each configuration but the redundancy I get with 2 separate batteries...

I'm after a bit of help in unraveling symptoms of my installation. My configuration is: 2 in parallel 4S 277Ah ETC Cells (top balanced before assembly) each with Chargery 8T BMS and Chargery DCC in a separate port configuration. Most of time the pack is lightly loaded with short periods of high...

I have 8 ETC 277AH which I am assembling into 2 off 4S 12V batteries. They have successfully balanced to 3.65V and I have attempted a load test on the first unit. The set up has Chargery BMS and the load was an inverter driving heatgun adjusted to approximately 100A at battery. During the test...

I have just assembled and tested 2 off 280Ah LiFePO4 batteries each with a BMS8T (V4.04), 300A DCC (Discharge) and 100A DCC (Charge) configured as separate port on the positive rails with ISO board in line. I am powering from the battery directly (no Schottky diode). I would appreciate some...

Hi have just installed 2 x 4S 280Ah connected in parallel, each with Chargery BMS8T and associated DCC - so far so good ?. As a precaution, I have been switching off the BMS when I leave the boat as this drops off the DC Contactors, isolating the cells from the outside world. The problem with...

There seem to be a number of suppliers stocking 277Ah cells. Should we be suspicious that these were initially manufactured as 280Ah and have failed a capacity test. It seems strange that manufacturers would produce two items with such close specification? Any insight appreciated......