Guidance on shunt settings

DIY
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1

Hi there,

I’ve got a smart shunt hooked up to the below battery, and whilst I’ve configured the shunt how I think it should be set, I am not convinced it is providing an accurate SOC:

The manufacturer provides a voltage scale for SOC, but I’ve seen it drop down to 9v and still provide power, and the shunt only drops to around 85%.

Could someone offer me any guidance on the key settings to change, and their values?

Many thanks
Eds

2

It would seem that you have not set up your shunt correctly.

Have a read of this post .

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3

In addition the the excellent article linked above, for lithium, the other two settings that help accuracy are Peukert = 1.05 and charge efficiency =99%.