Can I connect the grounds in an isolated charger?

DIY
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1

I have a 12|12 30 Smart Isolated Charger on order. I need to use it as if it was non-isolated - in other words, connect the grounds. Can this be done?

I am charging a lithium battery from an AGM system.

2

Hi Yan.
Presumably an Orion. Yes you can do that. My personal preference would be to do it externally and not crowd the terminals on the unit itself.

3

Thanks! I am installing a separate fuse block with a ground bar for the chargers (new MPPT, new 120-12v, and new DC-DC charger).

It appears that Victron doesn’t make a 12|12 30A charger that can charge lithium batteries that is non-isolated, so I wanted make sure I’m OK.

4

They do - the Orion-Tr Smart is available in a non-isolated version and the Orion XS is also non-isolated. But, if you already have the isolated version of the Orion-Tr Smart, it’s totally fine to install it into a non-isolated setup.