The interesting part was the screen showed 43 miles on 9.5KWH. That's the highest electric miles I have seen and the lowest battery energy I have seen. This is only the second charge on the new battery, the first showed 10KWH. The old battery always showed 10 to 10.3 KWH before the engine starts. This must be due to the tracking of energy / miles?
The Volt stops tracking energy accurately once the engine/gas is used to recharge the battery. I'm at 11 kWh on my by battery power used, but > 150 miles on electric.