08/14/2013, 11:05 PM
Wow--I just encountered something similar yesterday. I had woken up early (4:30 am) and couldn't get back to sleep, so I grabbed my TP off of the Touchstone and headed to the living room recliner. After about 90 minutes of surfing and a few games, I finally was feeling drowsy and put the TP down on an end table. I didn't go back to it until 9 pm, only to discover that it had powered down. I forced a restart with the two-button salute--up popped the power plug icon. Ruh-roh...
Originally Posted by johnburnley
Knowing that I had precious little battery life remaining, I immediately plugged into a stock TP wall charger, getting the charging battery icon. At this point, I thought all was well. After about an hour, I checked the TP, only to see that the charging icon was still there. This puzzled me, as I would normally have seen at least a 25% charge after an hour, meaning that the TP should have automatically booted up by then. An hour later, nothing had changed, so I forced another restart (with the charger still plugged in). It still came up to the charging icon. Not knowing what else to do, I went to bed (sometimes sleep just solves stuff on it's own, right?).
I woke up this morning to see the charging icon still on the screen--now I'm starting to fear that either the battery or the charging circuit has tanked. At a loss for an explanation, I went to my last troubleshooting default step--flailing aimlessly. In this instance, this consisted of unplugging the charger, putting the TP back on the Touchstone (why not?), and trotting off to the bathroom to think (and perhaps to mourn). While contemplating what it would take to fully configure my backup TP to take over as my daily driver (it's currently my wife's toy), I heard the heavenly "bong" sound of Luna opening up, followed by the "bee-boop" of WiFi connecting. Oh frabjous day!
Bottom line: I have no idea why putting my TP on the Touchstone cured the problem. Everything I think I know tells me that charging is always better on the stock wall charger. In fact, once the TP started up, I plugged it back into the wall charger--the battery level was only 1%, but immediately started ticking right on up, just like I expected it to. Why didn't the hours previously on the wall charger do anything? Why did the Touchstone have an almost immediate positive effect? I have no answer to either question--perhaps more-knowledgable hardware geeks than I can enlighten us with some theories. In any case, I hope that this gives you some ideas to try.
At the very least, I'd guess that your TP (if new in sealed box) sat in a hot warehouse far too long, depleting the battery. If my experience doesn't help you, search for any of the several "TouchPad battery won't charge" threads in the forum. One thing to know is that the TP's design requires that there be some minimum charge on the battery for the charging circuit to work. Throwing a TP in a drawer for several months has been known to deplete the battery to the point that charging no longer works (the fix is rather extreme, requiring a battery replacement). I hope that your TP's showing the "battery?" icon indicates that it's not that far gone, but I must confess that I'm not sure what that means.