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Ford’s Key Life Battery test for Li-ion batteries simulates 10 years, 150K miles in 10 months, under different conditions

Green Car Congress

The company offered a limited release of the Ranger EV in 1998, the Escape Hybrid in 2004 and the Fusion Hybrid in 2009. For example, 50 million battery cells have been produced since 2004 in previous-generation production Ford hybrid vehicles such as the Escape Hybrid and Fusion Hybrid.

Li-ion 281