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1) I do not have washers nor dielectric grease....will correct. 2) I have maintained water levels. 3) Recent hydrometer and multimeter voltage readings attached. 4) Photos of charge settings attached....possibly set at 70A? 5) Several current photos attached...I'm new to this stuff.

Off grid

Does this chart shed any more light? SOC in percent and battery voltage.

Batteries have been in service for 10 months.

My Setup: 24 ea. 320 Watt panels, Sol-Ark 12K Inverter, 16 ea. Crown CR430 batteries. I am experiencing an issue where my batteries seem to be dropping from around a 75% charge to 0%. I get an F56 error on the Sol-Ark, my generator starts up and charges batteries to about 45%. Around 45% the...

Switched to Batt-V - Everything in PV Pro still displays as %, but inverter screen shows batt V now.

Here are several current photos of setting and voltage. Water levels are adequate and SG / Voltage readings attached.

Here are some current photos of my settings and of recent SG & voltage readings. Not sure how to tell if batteries have been severely sulphated?

I had the 16 batteries wired in 2 series of 8 in parallel (photo attached, corrosion since cleaned). One of the batteries has seemed to experience an event that causes the post terminal / housing / adjacent cable to melt (photo attached)...probably not good. While a replacement battery is...

I am not knowledgable enough to answer that question. Any thing that would point me towards a yes or no?