Sanyo Electric Co. built the , 330 volt 5.5 Ah (would make it 1.8kWh storage), 250-cell nickel metal hydride (NiMH) battery pack for the 2005 Escape Hybrid. The Escape Hybrid is a full hybrid, meaning the system can switch automatically between pure electric power, pure gasoline engine power, or a combination of electric battery and gasoline engine operating together, for maximum performance and efficiency at all speeds and loads. When braking or decelerating, the Escape's hybrid system uses regenerative braking, where the electric drive motor becomes a generator, converting the vehicle's momentum back to electricity for storage in the batteries. The Escape Hybrid's 133 horsepower (99 kW) Atkinson cycle gasoline I4 engine and electric motor combine to give , which gives the Hybrid Escape nearly the same acceleration performance as the conventional V6 Escape due to the electric motor's torque being available from zero rpm. The hybrid is said to give approximately 75% greater efficiency, the FWD version has EPA ratings of 30 mpg and 28 highway, with combined 29 mpg. The AWD version EPA ratings 28 city and 26 highway, combined 27 mpg -U.S. in city traffic, and has demonstrated it can travel 400–500 miles (644–805 km) on a single mpg-U.S. (7.6L-8.1 L/100 km; 35–37 mpg-imp) on the highway. To obtain these mileage figures, the owners manual states that pure gasoline, not ethanol blends, must be used. In 2006, Ford showed an Escape that could run on E85 fuel. Unlike conventional vehicles, hybrids often achieve better figures in the city because they do not waste power idling and can recover some power when stopping (by using regenerative braking) that would be wasted in a conventional vehicle. Recalls Subframe failure In April 2014, Ford issued a recall on 386,000 Ford Escapes and Mazda Tributes for model years 2001–2004 for Escapes manufactured October 22, 1999, through January 23, 2004, for Canada and the northern "salt belt" states in the US. Subframe rust can result in the lower control arm mount breaking or detaching from the subframe, resulting in a loss of steering control and the risk of crash. Dealers have installed a crossbrace reinforcement to any vehicle affected by the recall. Model years 2005–2007 were not affected. Second generation (2008) The second generation Ford Escape debuted at the 2006 Los Angeles International Auto Show. The North American-market Escape and its Mazda Tribute and Mercury Mariner siblings were redesigned to stay competitive