Orion XS Current limit settings, and cable + fuse size

DIY
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Hello.

I have a VW Caddy “camper van” and i allready have a leisure battery installed under the passenger seat. It’s a 90Ah lead battery, and i use it to run a couple of small fans for venilation, a small led light and a usb socket to charge a phone. Up til now i have just charged the battery at home before i go on a trip, but it’s not enough for longer trips ( 2-4 weeks on the road)

So, i’m planning to install a Orion XS dc-dc charger, and i’m about to pull the trigger on the web-shop to buy all i need.

Before i do that, i want to make sure i don’t do enything stupid. I made a easy schematic of the setup i’m planing (see photo)

Please comment if there is anything that seems off. I use 16mm2 cables, and the + cable will be between 4 and 5 meters total.

My main concerne is overloading my alternator (140A) What would be the recomended settings for the Orion XS on the imput and output current limit in this case?

I don’t need to carge the battery super fast, but rather be really safe regarding the alternator.

skjema
skjema1152×649 108 KB

2

Whats the reason for the switch in that position? Personally i would have placed it infront of the leisure battery, in anywhere. The Orion XS has an engine running detection, so you dont need to switch its input manually. If you want to prevent it from charging temporarely you can use the remote inputs.

Since you got a 40A fuse on the output, all you really need to limit is the output current, to maybe 30-35A. This will automatically also lower the input current. Also 50A should not be an issue for a 140A alternator

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Thank you for the answer.

I only use the car as a camper for 3 - 4 months a year, so i want a switch to disable the whole system for some periods.

Maybe i dont need the switch on the main + lead at all, and oly use a small switch on the remote input on the Orion.