PSA: Fast Charging derating significantly on hot days

[NAVEWO]

I posted related content at the thread below. Dealer finding leaks on Max Tow package in Schroeder valves and replacing freon. See below.

https://www.f150lightningforum.com/...cion-after-dc-fast-charging.15668/post-413635

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[sd25]

Interesting. That's 2 data points (including mine) with a bad schrader valve for the Max Tow AC.

My dealer had trouble finding the leak initially, before finally locating it at the schrader valve. So for folks with low freon in the Max Tow AC system (which leads to the battery overheating during fast charging), might want the dealer to check/replace the schrader valves (my defective valve was on the high side of the AC system).

 

[NAVEWO]

Interesting. That's 2 data points (including mine) with a bad schrader valve for the Max Tow AC.

My dealer had trouble finding the leak initially, before finally locating it at the schrader valve. So for folks with low freon in the Max Tow AC system (which leads to the battery overheating during fast charging), might want the dealer to check/replace the schrader valves (my defective valve was on the high side of the AC system).

For my part my thanks to you and this forum for giving me the information to take to the dealer. The technician reported finding "oil" on the high side caps. They found the system to be "low" and said it was not that bad...of course since it was leaking...it was certainly not going to get better on its own. Thanks for your post!

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