Arrid Twin Chargers

No Sorry. I'm not from Adelaide

Someone stole your pic EskimoRegards Bob
Where to next

well its outa
nudenut
puddle duck
or WillemWow, am I cute! The extra long legs are built-in prevention against ducks disease. Great looks and a real goer. Doesnt waddle along like some.

Hi Hoffy,

Not sure what diagram you got with your unit, but mine is correct.

The option for connecting a compressor fridge :

The red wire for the arrid and the vehicle supply( input ) is connected to the normally open contact of a relay ( 87 ) and to the relay coil + ( 86 ) .
The relay coil ground ( 85 ) is connected to ground.
It shows the second battery positive connected via a fuse to the normally closed contact ( 87a ) of the relay. The supply ( + ) for the compressor fridge is connected to the relay common ( 30 ).

Please note that you must use a changover relay ( SPDT ) relay for this purpose. A normal relay ( SPST ) will not work as terminal 87a may not exist or it will be bridged to terminal 87.

The orange wire from the arrid will connect to the second batteries + terminal and the black wire will connect to the battery - terminal and ground.

The idea here is that the fridge supply is coming from the second battery until the vehicle power is supplied to the arrid unit.
Once power is supplied to the arrid unit is the compressor fridge is obtaining its supply from the vehicle battery, not from the second battery.
This means that the arrids output is fully used to charge the battery and does not supply any power to the fridge.

Hope this helps.

Regards,
Mark

The Arrid will put out 20 amps and is capable of charging the van battery to full capacity. A car alternator will only charge a battery to around 70% capacity unless you can run it for 60 - 80 hrs.

oops I should say it is a Twin Charge 20 ( 20 Amp ) sorry for the confusion. I was thinking of another unit I had in the last camper.