I am trying to find the 12v lead To the battery. To safely integrate small solar charge controller into the existing house system (not wanting to have to build/wire a whole separate system alongside the factory one. )
Planning on disconnecting alternator power, and soon replacing existing wet cell marine with lifepo
Looks like you don't have an inverter but you do have a converter.
That means none of the alternating current stuff will work unless you are connected to shore power.
When you are connected to shore power you can likely use your converter to charge your batteries.
We need to check the exact model# of the converter to make sure its not going to do something nasty to your lifepo4 batteries.
Lifepo4 batteries should not get cold and absolutely cannot be charged below 0 celcius which means they should be in the living area and provisions may need to be made to ensure they stay above freezing.
For efficiency the converter, solar charge controller, batteries and dc load center should be as close together as possible.
Here is a system diagram.
Still a work in progress because we are missing details about your solar charge controller.
Have you purchased the solar charge controller and the panels yet?
if so what is the amp rating on the system side of the solar charge controller?
Code:
legend {
bp = Victron Smart BatteryProtect 65 amp
dpst = double pole single throw switch
mrbf_NNN = terminal fuse where nnn is the amp rating
shunt = shunt based battery monitor
|NNN| = busbar fused position where nnn is the amp rating
|UUU| = busbar un_fused position
<-> bi-directional traffic
<- = uni-directional traffic
-> =uni-directional traffic
}
converter {
pos
neg
}
shunt {
pos
sensor {
up
down
}
}
dc_load_center {
pos
neg
}
bp {
pos {
in
out ->dc_load_center
}
ground
}
panels {
pos panel_in_series<-panel_in_series
neg panel_in_series->panel_in_series
}
scc {
system {
pos
neg
}
pv {
pos<-dpst<-panels.pos
neg->dpst->panels.neg
}
}
system {
pos = {
awg2/0|UUU|<->disconnect_switch<->mrbf_250<->batteries.pos
awg006|100|<-converter
awg006|100|<-scc.system.pos
awg006|100|->bp.pos.in
awg016|001|->shunt.pos
}
neg = {
awg2/0|UUU|<->shunt.sensor<->battery.neg
awg006|UUU|->converter
awg006|UUU|->scc.system.neg
awg006|UUU|<-dc_load_center
awg016|UUU|<-bp.ground
}
}