Which has an OK battery but still reports itself as being in WT mode: So what's the status of this WT/WB flag? Can't it be trusted for PERC 6/i and maybe other adapters? If so, a man page blurp would be needed imo.
Difficult experiences have taught me to mistrust all the sensors coming from certain generations of controllers. It feels like they have a mode where they determine themselves "obsolete" and start punishing the ower.