The 787 batteries are built in Japan, which is not at all cheap, and in general has a much better reputation for quality and reliability than the U.S... This is

The 787 batteries are built in Japan, which is not at all cheap, and in general has a much better reputation for quality and reliability than the U.S... This is particularly true for high-end specialty products—like airliner batteries. [Japanese companies outsource all their cheap goods manufacturing to other countries.]