I tried to research this before submitting this question and have found nothing or maybe I didn’t look properly, but I am trying to figure out how to select between an Isolated and a Non-isolated DC-DC charger. There appears to be no difference between the two when I read the documentation. Thanks for you help.
Have you seen this?
Non-Isolated vs Isolated Orion-Tr - VictronEnergy
This might be of interest too.
Victron DC to DC Orion Chargers. Isolated or Non Isolated ? Which is right ? - Voltacon Solar Blog
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Thanks. I didn’t notice that. That clarifies things.
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For some reason, my search did not bring them up. Thanks.
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I have a loosely related question:
I am putting a 2nd battery in a vehicle that DOES have a metal chassis/common ground.
I happen to have an available isolated dc-dc charger from another project.
While I realize that a non-isolated unit is the proper type for this application, what I can’t find definitive guidance for is, is there a reason why I couldn’t/shouldn’t use the isolated unit - will the grounds communicating with each other cause problems?
TIA!
- Scott
Ofc you can use the isolated unit 
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Ludo is correct - while you can’t use a non-isolated charger in an isolated setup, you absolutely can use an isolated charger in a non-isolated setup, no problem.
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