Keep your batteries warm. It seems obvious, but pack your Solo and gear into your backseat instead of your trunk. If you're going to trek any distance while outside - something I actually do quite a bit - put spare batteries inside your coat.
It really does make a big difference. I've been making aerial videos in my Village since it was possible to strap a camera to an RC plane (heck, even before that - I've put cameras into everything from free-flight gas planes to sailplanes launched with a histart to humongous hot air balloons).
Off topic here, but it's seriously amazing to think back over the years at what we've considered small or "portable" cameras. Anyone remember Kodak "Disc" cameras? Those were cheap, and pretty much considered the smallest, lightest photo systems available. Horrible picture quality - but you'd be amazed how many of them actually became airborne!