Passive Coolers
Typically, a conductive cooling pad allows for the cooling of a laptop without using any power. These "Pads" are normally filled with an organic salt compound that allows them to absorb the heat from the laptop. They are good for a limited amount of time from around 6–8 hours of cooling. Other designs are simply a pad that elevates the laptop so that the fans in the laptop are allowed greater airflow.
The conductive cooling pads are not advisable for laptops that have fan vents built into the bottom as the cooling pad blocks the vents leading to overheating or premature system failure. The best way to determine if a cooling pad would be suitable for your laptop would be to take a look at the bottom of the laptop and look for air vents or fan vents. If they are on the side and not on the bottom, it is usually safe to use the cooler pad; otherwise, it may not be safe to use a conductive cooler pad.
The other variety that can be used simply has a hard resting surface that provides gap between the cooler and the laptop is normally safer to use.
Read more about this topic: Laptop Cooler
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