I've read the threads on how the TF700 dock only charges the pad if it's below 70%, and it did exactly that until yesterday. Also, I was careful to charge tab and docking station together overnight before first use and have done so repeatedly since. All well so far - until yesterday.
Yesterday the pad fell below 70%, then below 50%, then below 30%. The keyboard was dockad and recognized, and it was at 99% charge, but it didn't feel like sharing any of that charge with the tab. When the pad's charge fell below 20% I plugged the combo in and both the tab and the keyboard (which had dropped to 85% in the meantime) showed as charging, and the charge rose in both. I left them attached until both were at 100%.
Just to be safe, I did a few cold reboots following the instructions in other threads during yesterday afternoon.
This morning I open up the combo and get the red "empty battery" symbol. When I plug in, after a few minutes the tab shows as charging with 1% (so it had gone completely dry) but the keyboard still has 80% charge.
Any ideas? It's kinda weird... Oh yeah - when I got the tab, I updated it to Build 10.4.4.25, but that was two weeks ago, and the charging worked as it should afterwards, until yesterday.
Thanks for any thoughts on this.