How to wire Renogy DCDC30/50 in a caravan

We fitted a Renogy DCDC30 charger to our caravan to handle our solar panels and lithium LiFePO4 batteries.
Here we explain in detail how they are connected to the existing caravans wiring without having to make any cuts or holes.
Links
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Renogy Smart Relay uk.renogy.com/...
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[@deanswan6109]

@IntrepidIresons Thanks for the clarification on the wiring setup...I like the idea of minimal changes to the van (means you can reinstate the old system and move your new system to another van etc). Personally, I would of wired the PSU/charger back into the 12v distribution network and maybe fitted the new PSU/charger in place of the old and stored away the old one for reinstatement. Your videos have been a great help in "how to DIY" your own system. I will have further Q's but thanks again.

[@IntrepidIresons]

Glad it was helpful!

[@deanswan6109]

Just wondering how your system is working...have you evaluated it yet? Are you happy with it? Is there anything you'd do to improve it in retrospect? TIA

[@IntrepidIresons]

It's amazing. Only change would really be neatening up the wiring.... May do it one day....

[@deanswan6109]

@@IntrepidIresons Can you post a link for the relay...can't see it listed above. TIA

[@IntrepidIresons]

@deanswan6109 uk.renogy.com/renogy-smart-relay/

[@paulharrison904]

Did you need to take a negative from the car and if so where from. Also how does the relay wire up .

[@IntrepidIresons]

No, uses the existing negative feed through the 13pin plug and existing caravan wiring, negative and relay. Only changes needed are on the positive side.