Show CartBatteries for laptops have a unique challenge – they must be small and lightweight. In fact, the laptop battery should be invisible to the user and deliver enough power to endure a five-hour flight from Detroit to San Diego. But we know this rarely happens, as a typical laptop battery provides only about 90 minutes of service, and many of us complain of much shorter runtimes.
Computer manufacturers are hesitant to add a larger battery to the laptop because of increased battery size and weight. A recent survey indicated that, given the option of larger battery size and more weight for longer runtimes, most users would settle for the laptop battery that is being offered today. For better or worse, we have learned to accept the short runtime of a laptop battery.
Laptop batteries age more quickly than in other applications because of heat. During use, the inside temperature of a laptop rises to 45°C (113°F). The combination of high temperature and the battery’s full state-of-charge promotes cell oxidation, a condition that cannot be reversed once present. The battery’s life expectancy when operating at high temperature is half compared to a battery running at a more moderate 20°C (68°F) temperature. Leaving the laptop battery in a parked car under the hot sun, for example, will aggravate the situation. While all batteries suffer permanent capacity loss as part of elevated temperatures, lithium-ion batteries are affected more than other batteries – and most laptops are powered by lithium-ion batteries. The chemistry in a lithium-ion battery has a high energy density and is lightweight. Alas, there is no immediate breakthrough on the horizon of a miracle battery that would provide more power than the current electro-chemical battery.
So, as with your skin, keep the laptop battery out of the sun.
For additional information, visit www.batterygiant.com