SOC Monitoring after charge to 0%

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huberthochstrasser asked Feb 8, '19

SOC Monitoring after charge to 0%

Hello,

After connecting the Shore Power, the SOC went from 98% down to 0% during charging.
During charging 14.4V , -60A it always just was showing discharging.

Setup:
- 1 x Victron Quattro 12/3000/120-50/30 230V
- 2 x Victron BlueSolar MPPT 100/30
- 1 x Victron Color Control GX
- 1 x Victron BMV 702

Thank you for your feedback.

Best regards
Hubert

SOC

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Modifications Space

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Answer 1 · 2019-02-08T09:51:17Z

wkirby answered · Feb 08, 2019 at 09:51 AM

The most common cause of this problem is that the shunt is the wrong way around.

On the shunt PCB is written "Battery Only" on one end and "Load and Charger"
These must be wired correctly to ensure that the current flows through the shunt in the correct direction.

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tinybluehouse commented · Feb 08, 2019 at 11:40 AM

Yep.

Make sure the negatives for inverter and mppt are connected to the load side of the shunt and only the battery connected to the battery side.

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Answer 2 · 2019-02-08T11:52:24Z

huberthochstrasser answered · Feb 08, 2019 at 11:52 AM

strange .... from one moment to the ...

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Answer 3 · 2019-02-08T11:55:15Z

huberthochstrasser answered · Feb 08, 2019 at 11:55 AM

whitout changes it again 100%

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