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 Topic: solar panel control panel. 240v input?
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26/7/2015 at 3:50pm
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Hi, I've been searching the net for an answer but I can't find it. Bit complicated. Recently purchased 2 new 110ah batteries and 320w solar panels to charge them, so we can charge them when we decide to go off grid. I've installed my new batteries, attached the batteries together, added a new fuse box which I've wired up 5 new 12v sockets to, which I've placed around the van. I've attached the batteries to my solar panel regulator, the new fuse box and the original fuse box are safely connected and attached also to the regulator and I'm still yet to install and wire my panels up.
So that's where I am at the moment. I do have a concern though with my 240v mains electric hook up. Now we will, now and agian still want to use this at some sites. My question is i can see the 240v supply is eventually connected to the original fuse box which was attached to the battery but as I mentioned it is now connected to the load output on the regulator.
Now i know my panels should power enough to charge my batteries up in a full day as we most likely not going to be using that much power from them, I've changed every bulb to 0.1amp led from the original 1.6amp that was in there, so my lighting isn't going to drain power. It's only our phone and tablet chargers and my laptop which I have a 12v lead which draws 5.5amps and that's it really apart from water pump
So back to my problem, what happens if my panels fail me some how and I want to charge my batteries using the main hook up.
As I said its wired up to my original fuse box which is now connected to the load output on my regulator. What will happen if I attach my caravan to the mains now. I can only think off 3 options.
Option 1
Everything is fine. Power will travel through the load output and back though the battery connection on the regulator and charge my batteries.
Option 2
Nothing will happen. No power will go to the batteries from it.
Option 3
BANG
Would like option 1 to work. Now if this isn't the case then I am planning on disconnecting the wires of the 240v from the original fuse box and attach directly to one of the batteries using a inline fuse, just I don't want to go to that effort if I don't need to.
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