[cogman10]

Generally just not an issue. The biggest problem with deserts is battery degradation and not so much range problems.

[kortilla]

Air conditioning from 110F to 75F really drags down the range.

[instagib]

Had a thermometer read 170F 76C inside my black on black vehicle with windows cracked.

Decided to keep my battery devices in a cooler with cool and frozen water bottles to drink when I return. Phone, camera batteries, and a portable vehicle starter.