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Phoenix Smart Charger IP43 1+1: load charge + trickle charge with common grounding

Hi,

I want to use the Phoenix Smart Charger IP43 30A 1+1 to charge the service battery and the trickle charge to keep up the engine battery.

I have common mass and grounding between the two batteries, but I see the Phoenix has a separate negative wire for the trickle charge, with a very small wire section.

1) is the negative of the trickle same that the negative of the main load?

2) do I risk to create a mass loops with 30A splitting 50/50% between load negative (big bulky wire) and the trickle negative (small wire) with potential hazard?


Thanks for help here!


GroundingPhoenix Smart Charger ip43
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