ABR sidewinder Flyer duel battery system

Derek at ABR would be able to give you all that info.

Hi, Have been using one for over 6 years now. Now in its 4th vehicle. More than satisfied. Had an issue lately & had to replace the isolator but don't consider that too bad for the time & rough usage.

Thing to watch is the electrolyte level as I found that it would evaporate in summer here (Cent. Q'ld). Time for running a fridge depends on the size of the battery & settings. Have had no trouble charging the van battery. The only mod I thought necessary was to add 2 Engel female plugs. The end screws off your Engel cord giving 2 prongs that fit the plug & a screw fitting. Can't come loose. You lose the fuse in the cord but the add on has its own fuses. (About $15 from memory) Nothing worse than to finish a days driving & find the plug has vibrated loose, the fridge has started to defrost & the plug is half melted from making a bad contact

Hope this helps Bill

Col,

I use this exact same solution for an auxiliary battery in my dual cab.
In my case I have a 100Ah AGM battery inside.
When using an AGM battery, there is no issue in charging the battery whilst in the box.
I connect my 40l Engel fridge to the Flyer when travelling.

On most occasions I tow my camper trailer which has another Waeco upright fridge connected to two 80Ah AGM batteries.
To maintain a charge in these batteries I use a patch lead, connected to the output Anderson connector on the Flyer which protrudes from the tailgate. To this, I connect the power input lead for the trailer via Anderson connector to an on-board dc-dc charger in the trailer. This ensures an optimum level of voltage from the vehicle alternator, via the Flyer battery to the two batteries in the camper, enabling them to be continually charged when travelling.

The flyer is a great solution for a dual battery system in a dual cab or any other vehicle where an auxiliary battery cannot be mounted in the engine bay.
Actually, in my opinion, this type of dual battery solution, where the battery is mounted in the rear area of a vehicle is superior. Only a short and standard cable is required to connect the fridge and there will be no voltage drop in this method of fridge connection.
The cable supplied as part of the Flyer solution is heavy enough to ensure a sound connection from the starting battery to the Flyer, again with no voltage drop to worry about, and the built-in isolator will protect the starting battery from discharge, as the two batteries are isolated from each other.

Thanks to all for the great info I think the flyer may be my answer