When you first get hired to a job, the employer quotes your gross salary or gross hourly pay. But your net salary will most likely matter to you more in your day-to-day life....
Batteries are affected by temperature and or humidity. If batteries are too hot or too cold, then yes batteries will exhibit behaviors that would be incongruent with their normal and designed operating specifications.
Magnet strength can be affected by certain environmental changes like temperature. The effect of temperature on neodymium magnets is one of the most interesting phenomenons to observe and evaluate. In this magnet experiment, we specifically explore how magnets react when exposed to extreme heat.