My detectors are like a pack of hounds.
They are only happy when they are on the hunt.
Right now they are resting in the office of my home, after yesterdays hunt.
Its been cold down here in South Florida but, the hunt goes on.
Yesterday it was 40 deg and windy as hell. Quite uncomfortable but easy to ignore when you're on the hunt.
I hit one of the parks in Hollywood Fl yesterday and within a few hours
had found a pocket full of change, a small spill of all clad at 3", and the usual clad here and there mixed in with a dump truck worth of trash. About $2.50 total. The trash was horrible, almost impossible to hunt in.
I was using an 8" Coil and forgot to bring my 5" trash puck with me. I doubt it would have been much easier even with the 5.
As far as leaving your (electronics) in the cold and heat, Its one of the worst things you can do to them. Expansion and contraction due to temperature change is the worst thing you could ever do to anything that has juice running through it. Its unavoidable down here in Florida where its 98 deg or more in the summer time and then you have to take your unit into the house with the air cond. on at
77-78 deg. Luckily we seem to get away with it.
The second thing is moisture and humidity, it kills things and makes components corrode.
Humidity in Florida really eats up everything. Its the worst part about being here.
The air conditioning seems to dry out the moisture so its not quite so risky.
I wouldn't leave my gear in the garage or the car / truck. I paid too much to take any further risk then what is necessary with regards to the elements and electronics.
I always take the batteries out if the detector after every hunt.