Battery power diode
There is a diode to prevent the battery from charging directly from VBUS. This should be a Schottky. Minimize voltage drop and power loss.
Battery voltage diode
I've added a diode in series with the battery for voltage measurement. The idea is that the diode will drop the voltage into the measurable range. I think this is better than a voltage divider.
Battery power diode There is a diode to prevent the battery from charging directly from VBUS. This should be a Schottky. Minimize voltage drop and power loss.![screen shot 2016-09-09 at 12 14 26](https://cloud.githubusercontent.com/assets/281642/18375251/0eb400ac-7687-11e6-9dd8-b068af8e8f3a.png)
Battery voltage diode I've added a diode in series with the battery for voltage measurement. The idea is that the diode will drop the voltage into the measurable range. I think this is better than a voltage divider.![screen shot 2016-09-09 at 12 11 57](https://cloud.githubusercontent.com/assets/281642/18375232/dba73602-7686-11e6-99fa-220ab9f01f86.png)