Orion XS outputting 16volt

[Bob S]

I’m using a Victron Orion dc-dc 50 to charge my AGM start from my lithium house. Plugging in everything seemed to work fine. The Orion and the BMV showed the start charging at 14.6 (what I had programmed it to).Today I created a Wi-Fi network for the Orion, two mppt controllers and the Victron 714 bmv. The boat is still on the hard. I commissioned the water tanks and ran the engine. When finished I was still plugged in and noticed the battery monitor was reading 16v to my start. Not sure if anyone has seen this. After rereading manuals I googled it. It brought me to the Victron community forum. Seems this happens when the Orion is connected to a Cerbo GX and DVCC is enabled. I am not connected to a Cerbo GX yet it is happening. Anyone have a similar experience?

 

[Johann]

Is your BMV monitoring your LFP bank or your starter AGM. Normally the BMV is on the House bank and if that is your setup then you should not network the Orion XS to the BMV.

 

[Bob S]

Actually it’s monitoring both. I was going to remove the Orion from the network and see what happens.

 

[Johann]

Actually it’s monitoring both. I was going to remove the Orion from the network and see what happens.

Ok so the AGM is being monitored as the “Starter battery” by the BMV. In this case you don’t network the Orion XS. When networked to a BMV, the Orion (or any ve.smart charger) views the primary battery as the battery it is charging. So it sees the LFP voltage from the BMV and is attempting to raise that voltage to 14.6V. Obviously that can’t happen so it continues to raise its voltage to the maximum it can output. If you want temp and voltage compensation on your AGM you could install a Smart Battery Sense on it and network the Orion XS to that.

 

[Bob S]

thanks Johann, I have two Solar chargers also on the network but there charge goes to the lithium. I’ll disconnect the Orion.