RHarries
Advanced Member
I recently swapped out my dying AGM battery power for a single Renogy 100 Ah LiFePo battery with self heating function. My power system also includes a Victron 712 BVM (with temperature sensor), Victron MPPT, and Victron Orion DC charger.
Everything worked perfectly this summer, yet now that temperatures are dropping I want to make sure that I don't damage the new battery by charging at freezing temperatures.
I have the BMV low temperature relay set to 3 degrees Celsius.
I noted that the solar charger was not charging yesterday during freezing (2 C) temperatures, however when I started the truck, the DC charger initiated charging the battery. I do not see that the DC charger has the ability to monitor temperature and adjust its charging program.
I believe all is wired correctly. All positive leads (solar, DC charger, Iota, etc.) to a BUS bar with a single 2 AWG to the house battery, and all negative leads to the 712 shunt with a single connection to the house battery negative terminal.
Finally my questions:
Should the DC charger be charging the battery even though the shunt relay is set to limit charging at low temperatures?
I am unclear on how the "self heating" function of the battery is supposed to work. (there is very little info from the vendor available)
Thanks,
Everything worked perfectly this summer, yet now that temperatures are dropping I want to make sure that I don't damage the new battery by charging at freezing temperatures.
I have the BMV low temperature relay set to 3 degrees Celsius.
I noted that the solar charger was not charging yesterday during freezing (2 C) temperatures, however when I started the truck, the DC charger initiated charging the battery. I do not see that the DC charger has the ability to monitor temperature and adjust its charging program.
I believe all is wired correctly. All positive leads (solar, DC charger, Iota, etc.) to a BUS bar with a single 2 AWG to the house battery, and all negative leads to the 712 shunt with a single connection to the house battery negative terminal.
Finally my questions:
Should the DC charger be charging the battery even though the shunt relay is set to limit charging at low temperatures?
I am unclear on how the "self heating" function of the battery is supposed to work. (there is very little info from the vendor available)
Thanks,