The second generation Prius plug-in hybrid, the Toyota Prius Prime, was unveiled at the 2016 New York International Auto Show. The Prius Prime has an 8.8 kWh lithium-ion battery that delivers an EPA-rated all-electric range of 25 mi (40 km). On one full tank of regular-grade gasoline and a full electric charge, total range is 640 mi (1,030 km) Toyota’s initial expectation was a range of 22 mi (35 km) on a full charge, doubling the first generation model range. To keep up with the demands of charging the larger pack, the onboard charger was upgraded to a 3.3 kW, up from 2.2 kW in the Prius Plug-in. The lithium-ion battery pack can be charged in 5.5 hours with a standard plug at 120 volts, or a dedicated 240 volts outlet can cut the charging time by more than half.