Battery / Charger / Solar upgrade in 2008 Kontiki 645

stupeo

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Swift Kontiki 645
Good evening Everyone, My name is Stu, I'm new on here and Have just recently Purchased a 2008 Swift Kontiki 645 Based on the 3.0 Fiat Ducato.

It has already fitted a single (unknown wattage as yet) Solar panel on the roof and a very basic Solar charge controller, There are 2x agm leisure batteries @ 110ah & 100ah and a battery master which keeps the starter battery topped up when there is surplus power in the leisure batteries.
I believe the vehicles standard system includes a split charge relay to charge the leisure batteries when the engine is running.
The fuseboard / control Unit is a Nordelletronica NE184 with a NE143 battery charger.
I am about to embark on upgrading the system, but My understanding is that none of this system is compatible with Lithium batteries.

I have already purchased in readiness for upgrading a Fogstar drift 460ah Lithium battery & My plan is to increase the solar, simply put by as much as I can physically fit on the roof, probably around 600-800 watts, I also have previously purchased several Renogy items for a different campervan project but now surplus, A 40a dc-dc charger, A 3000w inverter, A Renogy M1 panel and a Renogy Rover 40a mppt charge controller.
I'm not too worried about spending a little more money in order to get the vehicle as "off grid" as possible but I have one major stumbling block.

Can anyone explain how the heck I can install this with losing functionality of the existing control panel etc, the existing system seems to be interlinked / modular and all plugs into and talks to each other so I guess disconnecting for example the existing charger to replace with a lithium compatible charger will create issues ?
 
:welco:

It will be more straightforward than you think.
The solar controller just connects between the panels and the battery fused at the battery end.
For the mains charger just disconnect the mains from the charger and the 12v output from the charger. Connect the new charger direct to the battery via a fuse.
When you connect the B2B you need to disable the split charge relay.

It's worth upgrading the wiring as Brit vans use well under size cables.
 

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