upgrade

Earlier this week, Tesla confirmed that it is introducing its new 75 kWh battery pack to the Model S, like it did for the Model X last month. Now Tesla confirmed that while the option is not available now, it will be by the end of the week, and every updated Model S 70 produced since the ‘facelift’ was equipped with the new 75 kWh battery, but software-limited to 70 kWh.
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Tesla sent out an email this weekend to Model S owners on the waiting list for a retrofit of their Performance Dual Motor Model S to enable the ‘Ludicrous’ mode. In the email, Tesla explained that due to parts and process improvements, the company is now able to offer the upgrade at a reduced price of $5,000 instead of the previously announced $7,500.

The Ludicrous upgrade consists of two improvements to the electronics of the Model S’ battery pack. The first improvement is the replacement of a standard fuse to an “advanced smart fuse” which enables the monitoring of current to the millisecond, and makes it possible to cut the power with “extreme precision”.
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Yesterday we reported that Tesla is in the final stages of negotiations with LG Chem for a battery cell supply agreement. Today, we learn through the WSJ (paywall) that Tesla confirmed the agreement and that the company will start by using the battery cells for the battery upgrade of the Roadster 3.0.

Furthermore, The Korea Industry Post reports that another Korean electronics giant, Samsung, is reportedly about to sign an agreement to supply battery cells to Tesla.
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