Smart Shunt accuracy

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simeons asked Dec 31, '21

Smart Shunt accuracy

Is SOC more accurate than consumed Ah as a %?

Have been using the smart shunt for about 6 months and noticed that the SOC is always higher than the Consumed Ah as a % of the battery bank total. I.e.: SOC currently reads 77% and Consumed Ah is -114 of a total of 345Ah (66%) in the battery bank. volatage reads 11.86.

Battery settings are top to bottom:

345

13.5

50%

4%

3m

1.24

85%

0.1a

3m

the batteries re Rolls AGM

Thanks

SmartShunt SOC

2 |3000

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Answer 1 · 2021-12-31T11:02:20Z

Stefanie (Victron Energy Staff) answered · Dec 31, 2021 at 11:02 AM

Hi @SimeonS,

try playing with the Peukert value and take in mind that batteries are ageing. So this needs to be adapted.
Consumed Ah is more accurate than SOC.

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