Tesla deliveries come in light for the second quarter

Spencer Platt/Getty ImagesA Tesla Model S.Tesla reported vehicle deliveries for the second quarter, and they were lighter than expected: 22,000 in total - versus the first quarter's record of 25,000 - thanks to challenges with the largest battery pack for the all-electric cars.

Just over 12,000 of the cars delivered were Model S and over 10,000 were Model X, the carmaker said.

That was a 53% increase over the same quarter in 2016, bringing the yearly tally through June to 47,100 - slightly off the pace of 50,000 that many Tesla observers and analysts had expected.

"The major factor affecting Tesla's Q2 deliveries was a severe production shortfall of 100 kWh battery packs, which are made using new technologies on new production lines."

Tesla said that production was off by 40%, but that the issues related to the delay have been resolved.

Vehicle production for the quarter was 25,708 vehicles, and for the first half of 2017 it was 51,126 vehicles.

In its statement, Tesla said that it expects deliveries in the second half of 2017 to beat the first half.

Tesla shares were down about 2.5% in a shortened trading day on Monday, to $353. The stock has been on an epic run since the beginning of the year, up over 60% in 2017 so far.

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