How often should I charge my TP? What % should it be before I charge my TP? Will the battery build up a memory if not charge right?
Treat it just like your phone. When low, charge it, when full, don't. I'd probably err on the side of less charging, but don't hesitate to charge it completely full or to allow it to run out completely.
It's a lithium ion.. it won't affect or hold any "memory"
Once a month, do a full drain, full charge.
Other than that keep it charged when you can.
how about the touchstone? what if its always left on there?