Automakers might need to copy Tesla's playbook for battery sourcing. Here, a battery is installed in the Hummer EV.

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Auto companies need EV battery supply more than ever, but the costs are adding up. Prices and a push to use local materials have carmakers investing in in-house battery supply. This move copies what Tesla has long been doing for years.

With electric car battery costs on the rise, auto companies are doing everything they can to make their EV offerings more...

Continue Reading To make cheap EVs work, automakers are replacing decades of know-how with a move from Tesla's playbook