# Google Phone Battery Usage Graphing

I've been learning how to program for my Android G1 "google phone" recently. I
wanted to learn how to use the database and network communication APIs at the
same time as learning how to write background services. I decided I would write
something to monitor my battery level and upload data about it to my server
which would then graph it using [RRDtool](https://oss.oetiker.ch/rrdtool/). The
final result is the following three graphs. They're not static graphs, they're
being updated every fifteen minutes:

![Hourly graph](/blog/battery-hour.png "Hourly graph")

![Daily graph](/blog/battery-day.png "Daily graph")

![Weekly graph](/blog/battery-week.png "Weekly graph")

I'm using an extended life battery which makes a charge last about 225% as long
as the standard G1 battery. That gives you an idea of the charge and discharge
times of the phone. I tend to have wifi and bluetooth turned off unless I need
them.

**Update:**

For access to the source code, please see [Android Battery Graphing Source
Code](https://www.grepular.com/Android_Battery_Graphing_Source_Code)