The classic car Fiat500 (F) dashboard:
with Km/ORA,  Gears I II & III and 
Luci, Benzina & Olio.

Shows battery level (%) and -lifetime (days in dots).
The lifetime days are displayed in 7 dots. A white dot is one day of your battery lifetime.

V4: Configurable via Phone settings (vibrate & period). 
V6: Bug fixes & blinking '+' when charging.
V7: Minor bugfixes.

-Gio-

Shows the battery level...with just one button press (use the quick launch).

Shows battery level (%) and -lifetime (days in dots).
The lifetime days are displayed in 7 dots. A black dot is one day of your battery lifetime.

New feature:
V4: Configurable via Phone Settings (vibrate & period).
V6: Blinking '+' when charging.
V7: Minor bugfixes.

-Gio-