Hot garage effect on battery?

[_hchc]

Anybody knows if the battery temp will be maintained while sleeping and/or not plugged in? My garage in Texas summer get upward of 100f and I usually only plug in when needed. I don't remember hearing the cooling fan turning on ever when unplugged so I'm concerned about battery degradation in this enviroment.

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[Riptide]

Solar exhaust fan for garage could be a game changer for garage temp. Cheap and easy.

 

[SANZC02]

Anybody knows if the battery temp will be maintained while sleeping and/or not plugged in? My garage in Texas summer get upward of 100f and I usually only plug in when needed. I don't remember hearing the cooling fan turning on ever when unplugged so I'm concerned about battery degradation in this enviroment.

You should be fine, the BMS will maintain the battery. I have a place in Coachella Vally with frequent summer temps between 110 and 120 and my Tesla has never had an issue. I have not had those temps yet with the Rivian but do not expect any issues other than a little more vampire drain if not plugged in.

 

[shrink]

Just plug it in an let the thermal management system do its job. Found this from the way back machine:

https://chargedevs.com/newswire/riv...imiting-factor-for-maximizing-ev-performance/

Rivian’s solution is to separate the liquid cooling system into three loops and use “some intelligent valve control” to maximize the cooling potential and achieve the highest performance.

The battery has a dedicated circuit with heating and a chiller so we can intelligently prepare the battery for the optimum temperature for whatever it needs to do,” explained Farquhar. “If we’re in a very cold environment, we can heat up the battery temperature to maximize its efficiency and therefore the vehicle’s range. The same principles go into the separate circuit for the traction system to keep the motors and inverters at an optimum temperature. The motor and inverter has a water-glycol circuit to cool the stator and the power electronics. Then the third loop is for the passenger cabins and the heating, ventilation and air conditioning circuit. So, for those three separate circuits, we’ve got intelligent valves and control systems to optimize their performance.

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