An update on my new LFP battery bank…
I had communicated with the mfg (Humsienk) and they asked me to independently charge each battery using a 14.6 v and 5 amp charge, and to leave it on the charger for a couple of hours. I did each one, somewhat unsure of what good it would do since the batteries shut off their CHG switch once they are at 100% SOC.
But I did as instructed.
I reinstalled the batteries yesterday and left them charging over night (fridge and a few other things are on, so there is always a small load on the batteries).
Got to the boat this morning, batteries were within .1 volt of each other, and both were discharging (sharing the load).
I took the boat out for a 3 hour sail, leaving fridge and other electronics on, including using the AP a bit. I was very happy to see that both batteries were at same voltage, both discharging and sharing the load! When I got back to the dock, and before turning on the new Victron charger, Voltage and SOC were identical on both batteries. This is what I was expecting to see.
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If I were to do it again, I might opt for a single 200 or 300 Ah battery to avoid the paralleling issues, but if these now are “equalized” and stay close to each other, I will be very happy.
Greg