I'm trying to compare the power-on time between my two touchpads (I have to return one, but Dr. Battery reports significantly different capacities for the two touchpads).

I'm going to do some testing, but is there an automated app that does one of the following:
1) Log the time spent powered on
2) Automate a certain -- e.g. send an email (I can set it to send myself an email to a dummy account every 5 minutes or something)