Hi Bob

I am not exactly sure what you have done, or have there, but the standard answer would be you should only use one regulator between the solar panel and the battery. If the panel has a regulator then just connect it to the battery. If the DC-DC charger has an input for a solar panel then this would be for the direct panel input without the regulator. This generally applies to PWM regs as well as MPPT too. 

Jaahn

 

I have a CTEK D250S Duel Dc to Dc charger, Bob.
Yours may be different

I am sure that I had read that you must not have a regulator on your solar panels as it will not show enough power, for the CTEK to work. Or words to that effect

Very easy on a lot of solar panels to isolate the solar regulator, by disconnecting the wires before they go into, and out from the solar regulator, and connect them together

Later on if you want your solar panel to be connected direct to your battery, just put the wire back into the solar regulator

I normally make a bit of a diagram when I remove any 12 volt wires, as it helps when you are replacing them, at a later date

Hope that this helps you out

Can I ask what you guys use to check your DC to DC charger is picking up charge from your solar panels, I looked at the Redark battery management system but at over $2000 I thought it was overkill. What I plan to do is fit a DC to DC charger but I would like some sort of gauge that tells me the system is working. The charge will come from solar, Anderson plug while travelling and 240v when I can get it and I would like the DC to DC manage all of them, can I ask am I on the right track. However i do know and agree with everyone in here that you should one run the one controller because they will conflict with one another if you use one on the solar panel and one close to the battery.

Cheers

Martin