I am looking for some clarification on Working Modes as I received some contradictory information from SS this morning. It looks to me like, at present, the Battery Backup working mode is mutually exclusive with the rest of the working modes. That is, you cannot program a FlexBOSS21 to prioritize grid power over battery power for a specified period of time. When you enable the Battery Backup working mode, it overrides the other scheduling you have done, and the time fields for Battery Backup cannot be edited (so it is locked in at the full 24 hour period).
One of the techs from Signature Solar thought he could modify the time period field for Battery Backup, but as long as Battery Backup working mode was enabled it kept that setting for 24 hours and ignored the other programmed working modes. The other tech I spoke to said it is a known issue.
My ideal scenario with the system in question (GB, FB21, PP WM, no solar) is to program grid priority for most of the day, A/C charge in the run up to peak hours, and then peak shaving through the most expensive period, rinse and repeat. So far it doesn't look like that is an option, unless there's something that I am missing.
