question

rpgilbert1 avatar image
rpgilbert1 asked

Current drain from battery bank much higher than AC Load

I have an off grid system with Lynx Shunt, Smart Solar MPPT, Multiplus, Cerbo GX, and 6 Lithium batteries connect 3P2S. The dashboard show a much higher (10x) current drain than what appears on the AC Load:

victron-screenshot.png

Battery status is negative (0% charge) and has been for some time. Is this a hardware problem or a setting that is off? All firmware is up to date.

lynx shuntinput currentac
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Alexandra avatar image Alexandra ♦ commented ·

Edited sorry forgot american type systems.

Are they victron batteries or other?

Your shunt settings are possibly incorrect.

Are you able to acces/share them?

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rpgilbert1 avatar image rpgilbert1 Alexandra ♦ commented ·
Alexandra,

Sorry I appear to have put my response in the wrong place. Please see Answers

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rpgilbert1 avatar image rpgilbert1 Alexandra ♦ commented ·
Alexandra,

I'm not sure what the problem was but I researched the Lynx Shunt manual and followed the instructions on calibrating zero current. I shut off the solar feed to the MPPT and shutdown the Multiplus. I still had power to the Cerbo because I needed to be able to use the remote console to do the zeroing. I figured a few amps would be insignificant to what had been going on. It worked. Battery showed zero not -1500 or more, so I started power back to the MPPT and Multiplus. It now is running +/- 3amps depending on solar input - end of the day here. No clue what caused this but so far so good. Thanks for your input.

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1 Answer
rpgilbert1 avatar image
rpgilbert1 answered ·

6 Chins 12 V 300Ah Lithium 3P2S

shunt1.png

shunt2.png

Not sure if this is what you need



shunt1.png (51.7 KiB)
shunt2.png (46.0 KiB)
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Lynx Shunt VE Can online manual


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