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I purchased a Smart Battery Sense unit previously, but am close to deciding to go ahead and purchase the CCGX. Will there be any use for the Smart Battery Sense (i.e., can the CCGX use its data) once the CCGX is installed, or will I not be able to utilize it with my system at all?
As long as you do NOT enable STS & SVS (DVCC functionality) with the CCGX, yes it will continue to work independently via the existing VE.Smart Network with your MPPT.
However, it will not report any of the Smart Battery Sense info on the CCGX.
Ok, what if I just decided to return it while getting the ccgx. Is there a way to have precisely the same functionality using just the ccgx and smartsolar, or would that require a BMV?
Yes you will need a BMV-702 or BMV-712 with the temperature sensor accessory.
Then it can transfer the voltage & temperature to the MPPT via the VE.Direct cables & CCGX using DVCC > SVS (shared voltage sense) & STS (shared temperature sense).
If you happen to also have a Multiplus you could use this as the source (since it has separate voltage sense terminals & a temperature sensor) , but STS from the Multiplus is not yet available (but should be coming soon). There are also draw-backs using a Multiplus as the source, as it wont transmit any data if it is turned off.
If you don't have a BMV yet - I highly recommend purchasing one for battery SOC % monitoring. There is also little point getting a fancy CCGX unless you have a proper system for it to monitor & display data from.
