59 replies to this topic

[rando]

Your new diagram looks fine with respect to the ACR.  

 

I am trying to figure out how the solar charge controller is effecting the power to the fridge and fan if the power to the fridge and fan are coming directly from the battery (via the fuse panel)?   What if you disable the charge controller using the settings in the app?   Does the same thing happen?  

[buckland]

Out here in the camper still, and I will give that a try. Thanks for these suggestions. I am to do basic installs but when trouble occurs I lack the fundamentals to grasp how to back track. I’ll give it a go. And Thanks.
Rob

[buckland]

I just did that and I get no juice at all.... nothing ..... then even weirder ... I turned it back on and the CO alarm chirping and nothing would go on.
This is nuts. I have done nothing other than change out the battery and put in a new controller.

[rando]

Your dead sure you are not connected to the load terminals on the MPPT 100/20?

 

The only other explanation I can come up with is that your battery is not providing any power and everything is just running off the solar panels.  What does your multimeter say at the battery terminals with nothing connected?

[buckland]

Thanks really appreciate the help.
I will pull everything off and test ASAP .... (there is nothing on the load on the Victron.)
Rob

[buckland]

The Fluke reads 3.3 volts! I spent $945 for this battery!

[rando]

The battery is probably fine, the BMS likely shut it down and it just needs to be charged.    If you have an AC charger, charge the battery up with that.   If not, connect the Victron solar controller (and only the solar controller) to the battery and see what it can do. 

 

It really sounds like there is something fundamentally wrong with your electrical system, which likely explains all the frustration you had with your previous battery as well. 

[Vic Harder]

If the BMS has shut down the battery (I learned this the hard way) then you might have to disconnect all loads from the BBorn battery to allow it to reset.  A few seconds it all it takes.

 

Not sure the battery is dead... in a previous post you had a pic of the controller app, and it said it was in bulk mode and the battery voltage was pretty high as I recall.

 

Also, in your wiring diagram I see a fuse in the ground wire.  That's not necessary.

[buckland]

Ya on the negative wire fuse. I peeled back tape...it was red...FWC must have run low on wires and somebody just black taped a red wire to use for a negative lead. Ha!

I have a battery tender charger that says it does LiFePo4 charging. Tomorrow. Still got to find why things went south .... there’s a ghost in my machine.

[ntsqd]

I never digitized mine, has anyone ever made their complete wiring diagram something that could be posted? I'm suspecting that a diagram of how it should be done might be immensely helpful. I can whip out a conceptual 3D model in no time, but I'm dreadfully slow at something like a digital wiring diagram and no one can read my hand writing.