NAGOYA, Japan -- Toyota Motor will start final assembly of electric vehicle batteries at three more auto plants in Japan and the U.S., moving more of the process in-house to reduce costs associated with transporting heavy finished packs.
Automaker to cut costs by building bulky packs where they are installed

Battery packs for electric vehicles, which are installed at the bottom of this Lexus RZ, can weigh around 400 kg each. (Toyota Motor)
NAGOYA, Japan -- Toyota Motor will start final assembly of electric vehicle batteries at three more auto plants in Japan and the U.S., moving more of the process in-house to reduce costs associated with transporting heavy finished packs.