[S Keith]

Originally Posted by redpoint5

I've heard Prius batteries are affected by age as much as use.

You think Phoenix is a harsher environment though? Perhaps batteries hold up better in PDX. I'd expect batteries to degrade faster in SoCal and Phoenix than cooler climates.

PHX cuts about 40K off average mileage and 2 years off life. This is based on comparing my data to data produced by others with substantial battery replacement data in cooler regions. My data also includes Phoenix vehicles that spent most of their lives in other climates.

Originally Posted by JSH

The research I've done shows Ni-Mh less susceptible to calendar aging than Lead-Acid or Li-Ion.

http://citeseerx.ist.psu.edu/viewdoc...=rep1&type=pdf

Both of my Prii spent most of their lives in Birmingham, AL

I'm not presenting information based on research. I'm presenting information based on experience.