Lithium battery charging in FW of truck
Can someone please explain. 2015 F350 alternator 200-220A, wire to rear of truck not clear on gage but about 20’, wire from plug to FW batteries 15’ or more supposedly protected by 30A fuse. I se peop...
Forum Discussion
The solar part of that charger only has 25V (Voc at 25C) limit, so can only be used with 12v panels in parallel and when not so cold that Voc gets too high.
OP has 150w 12v panels with 22.5v Voc, so it can work that way if not too cold.
Otherwise, the solar part of the charger could be by-passed using another controller going direct to battery and they could add their amps if set to the same voltage.
Perhaps it might be advantageous to split the solar array (OP has four 150w) so some goes to the Renogy at 12v and some goes to its own 24v controller with that part of the array in series.
It says the solar can maintain the engine battery if the house batts are full, but also says the DC-DC isolates the engine batt from the house batts. I haven't got to where it explains (if it does) how that can be.
"NEVER connect the solar panel to the charger without a service battery connection. The Battery must be connected first"
OP has 150w 12v panels with 22.5v Voc, so it can work that way if not too cold.
Otherwise, the solar part of the charger could be by-passed using another controller going direct to battery and they could add their amps if set to the same voltage.
Perhaps it might be advantageous to split the solar array (OP has four 150w) so some goes to the Renogy at 12v and some goes to its own 24v controller with that part of the array in series.
It says the solar can maintain the engine battery if the house batts are full, but also says the DC-DC isolates the engine batt from the house batts. I haven't got to where it explains (if it does) how that can be.
"NEVER connect the solar panel to the charger without a service battery connection. The Battery must be connected first"
