DETROIT (AP) — Owners of Ford electric vehicles can now use much of Tesla’s charging network in the U.S. and Canada, but there’s a hitch.

They’ll need to get an adapter that Ford will provide for free, although the company won’t start shipping those until the end of March.

Last May, Ford became the first automaker to reach an agreement with the Austin, Texas-based Tesla to charge on its network, which is the largest and most well-placed in the U.S.

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