Batteries heating up to 105 degrees when charging

[SPITmadFIRE]

Keep in mind, if the 114°F is just an ambient air temp, it does not account for the temperatures actually impacting the battery which, would likely be much higher if the R1 is parked on an asphalt surface in direct sun. Combine that with some hotboxing interior temps (likely 120-130° in between automatic screen cooling cycles, which can also cause the batteries to slightly heat), and 120° seems pretty realistic.

Do we know what temp the BMS starts to actively cool the battery pack?

I could see constant screen temp alerts causing the AC to kick on contributing to battery temp, but assuming the vehicle remained parked, the asphalt directly underneath it would be shaded by the vehicle itself. I've street parked in 100F weather for hours and noticed no discernible increase in pack temp. Most of the time if the car hasn't been charged or driven, the pack will remain significantly below ambient during the day and significantly above at night.

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[HaveBlue]

140f internal car temp is no problem to get. Overnight temp was 90. The battery's thermal mass is no match to that of sun. Just saying it was hot and I've seen higher in sport mode when pushing it.

 

[blturner]

Seems normal to me. I think my batteries favorite temp is 90 to 95f. It seems to heat up to that when I am heading to a fast charger. I am pretty sure it will use the cooling circuit from a motor to the battery pack to generate heat in the motor and transfer it to warm the battery pack.
10 degrees over ideal is minimal.

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