EQ Voltage of Trojan SSIG or SIND batteries, Inverter/Charger recommendations?
I'm still putting together specifications for my new home and my battery search keeps landing on Trojan SSIG or more likely SIND line for price per Ah and longevity of the bank. However the specification sheets show 64.8V for EQ. I was looking at using Schneider XW+ 6848 as my inverter/charger and two MPPT 80-600's with 3.6kw arrays on each with a 12kw gen into the 6848. It all looks great except that the 6848 is limited to 64V as maximum EQ voltage. I spoke to tech supp and they said that's as high as it will go, other than actual voltage going higher based on temp compensation.
Do you think the .8V will make a big difference on reaching EQ or should I seek out another charger? Any recommendations?
** I did find the temperature compensation coefficient for the MPPT and I imagine the same is used for the XW. Listed as 108mV per degree C. While not exactly what Trojan calls for (.005V/deg C) x number of cells it works out close to a point. If my bank is between 50-60F most of the time then the resulting EQ charge should be close to 65.2V, yet Trojan's recommended would be more like 66.2V if I'm looking at this correctly.
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