The battery is the heart of electric cars. Disposal of batteries is an [[environmental]] concern. Dead ones can't be tossed in a [[landfill]] and few companies will recycle lithium batteries and electric cars have many large batteries. Seasonal weather changes, such as extreme cold, affect battery performance. In 2014, batteries measured to be half as efficient than in normal operating temperatures.<ref>[https://www.forbes.com/sites/jimgorzelany/2014/03/24/the-cold-truth-icy-temps-can-slash-an-electric-cars-range-by-more-than-half/#59b9efd626d7 The Cold Truth: Icy Temps Can Slash An Electric Car's Range By More Than Half, Forbes, March 24, 2014]</ref> | The battery is the heart of electric cars. Disposal of batteries is an [[environmental]] concern. Dead ones can't be tossed in a [[landfill]] and few companies will recycle lithium batteries and electric cars have many large batteries. Seasonal weather changes, such as extreme cold, affect battery performance. In 2014, batteries measured to be half as efficient than in normal operating temperatures.<ref>[https://www.forbes.com/sites/jimgorzelany/2014/03/24/the-cold-truth-icy-temps-can-slash-an-electric-cars-range-by-more-than-half/#59b9efd626d7 The Cold Truth: Icy Temps Can Slash An Electric Car's Range By More Than Half, Forbes, March 24, 2014]</ref> |