Data (last full discharge) Discrepancy between SmartShunt and Smart Lithium

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jonimthomas asked Dec 13, '21

Data (last full discharge) Discrepancy between SmartShunt and Smart Lithium

SmartShunt indicates 0s "Time since last full charge" and SmartLithium indicates 12d 0h since last full charge

Also State of Charge indicates 100% yet SmartLithium indicates 12d 0h since last full charge

SOC

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Modifications Space

Node Red Space

Answer 1 · 2021-12-13T20:22:21Z

bathnm answered · Dec 13, 2021 at 08:22 PM

What are your settings in the Smart Shunts for Charge Detection Time and tail current? What are you using to charge the batteries and what are their settings.

It could be as simple as the Lithium batteries have a slightly different algorithm and approach to setting full charge verses the smart shunt.

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Answer 2 · 2021-12-13T20:46:44Z

jonimthomas answered · Dec 13, 2021 at 08:46 PM

Battery Capacity 1200Ah

Charged voltage 13.2V

Discharge floor 50%

Tail Current 4%

Charged detection time 3m

Peukert exponent 1.25

Charge efficiency factor 95%

Current Threshold 0.10A

Time-to-go averaging period 3m

Currently using Shore Power to charge the batteries.

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Matthias Lange - DE ♦ commented · Dec 14, 2021 at 05:24 AM

Your settings are not correct, please look into the manual and/or watch this videos:

https://www.youtube.com/watch?v=4ReljfO3k6M

https://www.youtube.com/watch?v=mEN15Z_S4kE

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