For those who don't know about the three levels of electric car charging:
Level 1: 110 volts. The regular plugs found throughout our homes. Fully charge the Volt battery in 8 to 10 hours, using the charger cord that comes with the Volt in the cargo area.
Level 2: 240 volts. This is the same type of circuit that is used for electric clothes dryers or electric ranges. Fully charge the Volt battery in 4 hours using a 240 volt "charger" like the SPX Voltec charger or similar.
Level 3: 480 volts. This is almost never used in residences, but is found in some public charging stations. The Volt doesn't offer this level of charging. The Nissan Leaf can be charged from almost empty to 80% full in about 25 minutes, and it has a 24 kwh battery compared to the Volt's 16 kwh.
I sure would love to charge the Volt in 15 minutes at a level 3 charging station. Do any of you engineers think the 2011 Volt could eventually be upgraded to allow level 3 charging? Do you think it's likely future model years will allow it?
I understand Nissan says frequent use of Level 3 charging, such as more than once per day, can degrade the life of the Leaf's main traction battery prematurely, so it is not recommended. Does the same thing apply, to a lesser degree, to level 2 charging? In other words, if I have a level 2 charger, would it degrade my Volt battery less if I usually used level one charging for my overnight charge, and only used level 2 when I only have time for a 4 hour (or less) charge, rather than always overnight charging with level 2?