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Old 13-04-2021, 11:21   #1
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Inverter installed above Lithium Batteries?

I have a new Victron inverter I'm hoping to install in the next few weeks. I have three locations on the boat I can put it. One of them would be a new shelf built above the Relion battery bank.

However! The installation instructions state:

Quote:
Don’t install an inverter above the batteries

This is an ABYC requirement. Lead acid batteries give off corrosive gases that can destroy equipment directly above them, even sealed batteries can vent corrosive gases on occasion. The following diagram is showing you that the MultiPlus needs some space around it for ventilation. The Service Manual gives you more details about the mounting including the following: “The product must be installed in a dry and well-ventilated area, as close as possible to the batteries. There should be a clear space of at least 10cm around the appliance for cooling.”; and also: “The device can be fitted either horizontally or vertically. For optimal cooling, vertical fitting is preferred.” There is more mounting information in the Service manual.
https://www.victronenergy.com/blog/2...erter-charger/

Is this still true for lithium batteries? Mounting the inverter in the battery locker would be stellar positioning for both the DC and AC wires. The other two locations I have on board are good but not this good!
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Old 13-04-2021, 11:38   #2
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Re: Inverter installed above Lithium Batteries?

LFP cells are totally sealed, so they don’t off gas in normal operations. Lead acid batteries vent H2 hydrogen gas and H2S (hydrogen sulfide). H2S is corrosive, while H2 is highly explosive and flammable.

I can’t think of a reason why an inverter or other electrical components couldn’t be mounted close to LFP batteries, other than something metallic (and electrically conductive) breaking free of its mount and falling down on the battery and shorting terminals.
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Old 13-04-2021, 12:16   #3
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Re: Inverter installed above Lithium Batteries?

LoudMusic,

Lithium should be ok. I would be more concerned about the temperature in your installation area. If you have ventilation and it is secured to a shelf I think you are good. My batteries are under the aft starboard side birth. My Victron inverter is under the bridge deck for the better ventilation.

Good luck! Let us know how you make out.
Peter
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