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Hi, thank you for your hard work in this software. My question is: Does the JKbms now act as a shunt/battery monitor so as to make the need for the Victron smartShunt unnecessary? I have been using a smartshunt in my Victron ESS system together with a JK BMS with my DIY lithium battery. Thank you. |
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Replies: 3 comments 6 replies
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Hi It is always better to have one source of the truth. And for that I would suggest the BMS with cell level is the better source. Even better would be if you have calebrated. |
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If you have a smartshunt you can use this as a DC meter. With latest versions of the Cerbo GX if you are using the DVCC feature it will then take the DC loads into consideration. For example if you have a charge current limit (CCL) set to 30amps and the DC meter is showing consumers of 15amps the DVCC will allow charging devices to supply 45amps. (30a for battery and 15a for the dc loads) This is a great feature as it means you can use DVCC as well as things like dump loads and still charge you battery at the desired rates. |
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HI, Greetings Heinz-Dieter |
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Hi
The driver will enable your BMS to be the battery monitor. So yes you do not need the SmartShunt as this will be handled by the BMS.
The smartshunt is a great piece of hardware and very accurate, but is does not have any internal knowledge of your battery and this is where the BMS shines.
So yes I dod prefr to rather use the BMS as it is much safer.
But these Chinese BMS do not all come with the perfect calibration of of the factory. You can caibrate your BMS's shunt which is what is counting the columns, but I cant remember seeing such a function on the JKBMS app.
Any imballances on any of the cells will also influence the SOC calculation. In this case the Smurtshunt would not know ab…