On Friday, Tesla Motors announced that it would upgrade the Model S charging adapter after reports of overheating in garages. The company will provide the new adapter to its customers for free in the next two weeks. The redesigned adapter will include a thermal fuse that shuts off charging if overheating is detected.
Bloomberg reported that there have been about a half-dozen incidents, posted to a Tesla-owner website, in which “Model S wall plugs melted or smoked while vehicles were recharging.”
In a press release, Tesla pointed to possible causes including a “variety of factors such as corrosion, physical damage to receptacles, or inappropriate wiring or installation of electrical outlets.” According to the company, this can cause higher than normal electrical resistance when using the Universal Mobile Connector (“UMC”) NEMA 14-50 adapters to charge Tesla Model S vehicles.
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