Tesla Motors Inc (TSLA - Get Report) and Apple Inc. (AAPL - Get Report) met nearly a year ago to talk about something, but it seems unlikely that a partnership in Tesla’s gigafactory is the answer, as some have suggested. While both need a lot of batteries, 9to5 Mac posted a video in which Tesla CEO Elon Musk is actually talking with a hardware engineer who worked on the iPhone and explains the differences between the technologies they each use.
Tesla’s batteries differ in size from Apple’s
One of the main differences between the batteries used by the two companies is the size. Tesla Motors Inc (TSLA - Get Report)’s AA batteries are actually about 4 millimeters wider and 15 millimeters longer than the standard AA batteries you put in various electronic gadgets throughout your home. The automaker tightly packs the batteries into one unit so that they are very energy dense while also being rather inexpensive. Tesla said it plans to stick with that form factor for now.The batteries Apple Inc. (AAPL - Get Report) uses for its devices are very thin—much thinner than the 18 millimeter width of Tesla’s AA batteries. For example, the iPhone 5S itself is 7.6 millimeters wide, which makes the entire device much smaller than Tesla’s batteries.