[MV=PY]

"No one who left their flashlight in their vehicle overnight in the winter here would buy one...Batteries just don’t do that well in the cold."

Just FYI - I thought that and dug into it. The batteries have an insulation system around them that keeps them up to an appropriate temperature even in way sub-zero weather.

The technology has come a long ways in the last few years.

[Smokin' Joe]

Leave them out overnight in -30 and then drive 130 miles to the nearest large town, with the heater and lights on and the wipers going?

I'll stick with the tech I know, thanks. It isn't perfect, but it hasn't killed me yet.