Correct wiring and battery set up advice needed

[Bloodyaussie]

The other 105ah battery I have is stuffed.

I put it on load using the oven and checked the voltage and it dropped to 10v but it is 4 years old and I did not care for it properly.
The isolator is a cheap switching type and is working fine but will replace with a proper one when I can.

I checked and both batteries are charging from the 40w panel.

[the evil twin]

If you do choose to replace the Solenoid may I recommend a dual sensing one such as Intervolt or Redarc SBI12D.
What that means is no matter where a charging source is connected it will charge all batteries.
Costs a little more but handy

Yeah, that battery is now a door stop

[Bloodyaussie]

Cheers mate I was looking at those intervolt ones.. look like a good bit of kit.

There are a couple of units I am keeping my eye on and see if I can get on soon... I have been lazy and have a heap of crap I will put on ebay as faceache keeps stuffing me about dealing with dickheads so should have a little cash??

[Bob]

I have been lazy and have a heap of crap I will put on ebay as faceache keeps stuffing me about dealing with dickheads so should have a little cash??

I have also had a fair amount of success selling on Gumtree BA

[Bloodyaussie]

I have just checked the 85ah that was in the very back of my car and is now in a portable battery box and the multi meter says it is charging at 12.96v ??

The panel is the 180w and it is in full sun.

The other 40w panel is hooked to the cars cranking battery and it is sitting at 13.30v..

Any ideas?

[the evil twin]

Assuming the regs are smart enough and the bateries in question are not down on charge thru useage the most likely scenario is...

The 180 Watt 85 AH combo is charged and the reg is in the float phase.
The 40 Watt vehicle combo is in the absorption phase and the reg is loaded down to 13.3.

[Bloodyaussie]

Assuming the regs are smart enough and the bateries in question are not down on charge thru useage the most likely scenario is...

The 180 Watt 85 AH combo is charged and the reg is in the float phase.
The 40 Watt vehicle combo is in the absorption phase and the reg is loaded down to 13.3.

I will put the 85ah under load with the oven and see what it does.

I will wait until the sun goes then test it.