There is a menu option to Synchronize SOC to 100%. it did work but it hasn't worked since the last update. Are there a set of limiting parameters or conditions?
The CCGX does not monitor SOC it just reports or shows you what the system devices are saying. If you are not getting 100% then your system is either not charging or if you have a BMV then it may have lost synchronization.
We wont be able to say conclusively unless we you share more about your system.
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