It’s no secret that laptops tend to overheat and burn through their batteries in the blink of an eye. Fredrik Andersson of NordicHardware explains the technique of undervolting a laptop to cool your system down and extend its battery life. The expression “undervolting” is actually a misnomer, since what we’re really lowering is the tension of the system, resulting in a lower required voltage. I’ll be testing this on my old Dell laptop that is constantly overheating, and hopefully I’ll keep it alive for a few extra years.