Isolated Battery Bank?

Juliet 15 · Nov 4, 2024

So, last year I created a new house battery bank. I installed a separate pair of busses (one neg and one pos). The bank goes to an inverter that's wired into the house AC system.

I haven't connected anything but the inverter to the bonding system. Do I need to connect the house bank negative (ground) to the bonding system?

Delta Riverat · Nov 4, 2024

SteveK · Nov 4, 2024

I haven't connected anything but the inverter to the bonding system. Do I need to connect the house bank negative (ground) to the bonding system?

what/how did you connect inverter to bonding system, basically the negative of the battery to the chassis. The battery negative should already be connected to the bonding.

Juliet 15 · Friday at 9:36 PM

The battery negative isn't connected to the bonding system right now. I can connect it, but I'm wondering why do so? Do we connect battery bank negatives to bonding to prevent corrosion?

SteveK · Friday at 10:22 PM

ABYC says that is how it should be done.
Again I ask why did you connect the inverter to the bonding system, and how.

Juliet 15 · Friday at 10:43 PM

The old inverter (Magnum 2000) had the bonding cable attached. When I replaced it with a Victron 5k, I reattached in the same relative place - to one of the feet bolted to the shelf.

SteveK · Saturday at 2:05 AM

Thanks, the chassis connection which on the Magnum was to go to the battery negative.

Isolated Battery Bank?

Juliet 15

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Delta Riverat

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SteveK

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Juliet 15

Senior Member

SteveK

Guru

Juliet 15

Senior Member

SteveK

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