hi, i have a problem with 7604ni-e1 / 4p. i installed the nvr in a house where it has solar panels and batteries. unfortunately it snowed and the batteries ran out so the nvr was turned off, after cleaning the snow then power was back on. in recent days, despite a battery problem for too much distilled water, the current came and went. i found my nvr as if it was reset to factory defaults then i configured everything again. after a few days the power went out and it always came back due to a battery system problem, so I found my nvr reset again. I measured with a tester the buffer battery which was 3.2v, it seems to me or 3.1v, in your opinion what problem does it have? i also updated the nvr with the latest firmware but nothing. thanks
