As I thought, my battery has been taking a full charge, but the OS wasn't recognizing it immediately...taking between an hour and two, in glacially slow increments, to register it when I switched to battery power after fully charging it.
That seems to have corrected itself after a few shut downs, but I still see it when I put my screen to sleep and walk away from my MBP for a coupl'a hours after the battery's been discharging for a (n indeterminate) few hours. (In other words, as I use the battery and its projected life should remain more or less the same, it's increasing.)
Ball's in Apple's court.
The new Great Equalizer is the SEND button.
In Memory Of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire