Battery life is around 12hours with backlight on all the time. it is rechargeable and comes with charger etc. It is also USB as well as serial. display is stunning.
Terrain database for Europe does not have obstacles at the moment but due as a software update shortly. It does however give MSA.
It knocks spots of the gns430 as a VFR unit. I use both at the same time for both VFR and IFR flight.