daltons_advantures
New Member
Hey guys. I’m going to try to keep this concise.
I have a 200 amp lithium battery from renogy and the 50amp dc to dc controller with mppt. I also have a BT2 connected to the controller.
Recently my battery hasn’t been getting much charge at all, and I think the culprit is my charge controller.
According to my dc home app, my battery voltage is 13.5 and this is confirmed with a multimeter.
When I check the readout on my BT2, the charge controller thinks my battery is at 14.5 volts, so presumably it isn’t pushing any of that good San Diego sun into the system.
My alternator input is measuring 14.2 volts, and solar is 22. So I know the power is coming in. But coming out of the controller all I’m getting is 13.5.
If I change the parameters for boost charging in the BT2 module to 14.6 volts for my battery instead of 14.4 (the default) suddenly the charging rate takes off and the voltage is actually coming out of the controller.
Is this likely a faulty controller? Is there something I may be overlooking here?
The systems about 4 months old now and has been working fine up until about a month ago.
I have a 200 amp lithium battery from renogy and the 50amp dc to dc controller with mppt. I also have a BT2 connected to the controller.
Recently my battery hasn’t been getting much charge at all, and I think the culprit is my charge controller.
According to my dc home app, my battery voltage is 13.5 and this is confirmed with a multimeter.
When I check the readout on my BT2, the charge controller thinks my battery is at 14.5 volts, so presumably it isn’t pushing any of that good San Diego sun into the system.
My alternator input is measuring 14.2 volts, and solar is 22. So I know the power is coming in. But coming out of the controller all I’m getting is 13.5.
If I change the parameters for boost charging in the BT2 module to 14.6 volts for my battery instead of 14.4 (the default) suddenly the charging rate takes off and the voltage is actually coming out of the controller.
Is this likely a faulty controller? Is there something I may be overlooking here?
The systems about 4 months old now and has been working fine up until about a month ago.