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scotty79 avatar image
scotty79 asked

IP22 30/1 connection and charging

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Hi, I have an IP22 30/1 and have just connected it up to my small new build solar setup. I have not yet turned it all on as I need to confirm it is connected correctly. My question is:


I have it connected to the positive and negative of my bus bars to the same point as my MPPT charge controller. Is this the correct way to connect it like this? Also, (if correct) when I plug it into the mains to charge the batteries when needed can I still use the setup such as the inverter etc? Will it still charge the batteries if the load I am using AC or DC is less than the charger output?


I charged the batteries at 30a setting prior to building this up and it makes a loud hum/buzzing on bulk until it goes on to absorption. It's a lot quieter at 15a charge. I'm told this is normal but the manual states it is silent operation?!


Thank you!

bluesmart ip22
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Stefanie (Victron Energy Staff) avatar image
Stefanie (Victron Energy Staff) answered ·

@Scotty79

Connecting the chargers and inverter this way is fine, however the positive wires are not protected by fuses. I strongly recommend catching up on this.

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scotty79 avatar image scotty79 commented ·
Thanks, I thought the charger would be okay as it has a 40a fuse in the underside. I read the inverter also has protection built in. Would it not be fine like this?
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Stefanie (Victron Energy Staff) avatar image Stefanie (Victron Energy Staff) ♦♦ scotty79 commented ·

These fuses protect against reverse polarity, but not the wiring.

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