Batteries are a lot less efficient. I don't know whether discharging/using them in that state has a persisting negative effect, these days Thermally induced c

Batteries are a lot less efficient. I don't know whether discharging/using them in that state has a persisting negative effect, these days Thermally induced contraction and expansion can become an issue, particularly with marginal cases. I wonder about the tolerance some discrete components may exhibit, e.g capacitors. For that matter, how much does that resistor vary over larger temperature spreads? Anyway, I let my equipment warm up (or, when very warm, cool down, e.g. sitting in the trunk of the car in summer).