Summer Heat vs. Prius Battery?

Is Helendale, California, any hotter than either Phoenix or Tucson, AZ?

FWIW, there are LOT's of Prii running around in both cities...and one certain 2014 Prius is mine, albeit newly purchased. Sorta like the difference between electron-velocity and hole-velocity in semiconductors, rumors seem to travel much faster than facts. Heat is not kind to the batteries but (seemingly) cold is even harder.

 

Run the A/C, the battery is inside with you, so keeping you cool keeps it cool. Sun Shades all around and Window tint at the back of the car can help, heat you reflect is not inside with your battery. Especially if you carry pets, keep the battery fan cleaned.

California 2013 Tint Laws

 

it's a good idea to park in the shade when you can, use a windshield sunshade, tint the windows and run the a/c whenever it's warm out. heat is definitely a factor in battery life. it's not a deal killer, but there may be more battery prelims in warm area's than others. i don't know if there's any collected data though.

 

I'm in Malaysia. Temperatures usually around 27 to 35 centigrade (80-95 F). Had no problems. A/C set to auto 24 degrees (75 F).

Regards,

Phil

 

Silver exterior color, light gray interior color, dark window tinting, and daily use of windshield solar screen...also, I try to keep the A/C-temperature setting at 78ºF (although wife likes it lower).

 

I see you have a Plug_in (Li battery) so I am not sure in that case.
For Gen2 and Gen3 (NiMH battery) we normally suggest its better to not park in the heat when fully charged (all green bars). Normally, this would not happen but some people might have a big downhill before stopping. In that case they might want to get down a couple bars before parking (just use air cond a minute). However, I have not heard a similar recommendation for PiP.