Apple secretly collaborated with Chinese automaker BYD to develop long-range electric vehicle battery technology as part of its now-nixed Apple

Before the Project Titan was scrapped, Apple reportedly worked with Chinese automaker BYD on custom batteries for Apple Car for years, but ultimately abandoned that partnership too.

Apple Inc. worked with Chinese automaker BYD Co. for years as part of its now-canceled car project, developing long-range batteries that helped lay the groundwork for technology used today, according to people familiar with the situation.

Apple partnered with Chinese automaker BYD for several years as part of its now-shelved car project, focusing on the development of long-range batteries. This collaboration, which remained under wraps until recently,

Apple and BYD teamed up around 2017 to build a battery system using lithium iron phosphate cells, Bloomberg reported, signaling just how far the iPhone maker went in its efforts to produce a car.