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dazzla13

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Reply with quote  #1 
Hi I just wanted to test the battery life of my 490 but the batteries keep getting topped up by the solar panels. Just wondering how i turn them off. im going to leave the fridge running and see how long i get so im guessing if i flick the battery isolator breaker off it should work but thought i would put it out on here first. I dont have anywhere undercover to put it.

Thanks Darren
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William the Conqueror

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Reply with quote  #2 
Darren

The battery isolator doesn't isolate the solar panels...it isolates the 12 volt system from all the appliances you are running (that is if it is wired correctly). You will need to leave this on otherwise, you won't get a feed to run the fridge.

If you want to isolate the solar panels, all you need to do is cover them - if we go to a house fire where the house has Solar Panels, all we use is black garden plastic (double thickness) and cover them over. Works fine - and that is for 240 volt.

Cheers

Anthony

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dazzla13

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Reply with quote  #3 
Thanks mate. So can you turn them off in any way? So what happens when you disconnect the batteries are the leads still live then.
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William the Conqueror

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Reply with quote  #4 
Dazzla

Depending on the BMS you are running, they will not allow current to pass the BMS if their is no battery attached. The BMS uses the battery it is attached to to get the current to operate. If it doesn't have a current, it will go into fault mode and switch off. It will sort itself out when it is reconnected to the battery.

The reason I say depending on the BMS - over the years, Conqueror Australia has fitted a number of different BMS which all operate differently. In general though they will not let the current past the unit if no battery is attached.

A simple solution if you are worried - pull back the roof lining, cut the wires to the Solar Panels and fit an Anderson Plug. That way you can turn them on and off at will with out the risk of shorting them out.

Cheers

Anthony

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