![\"9-cell-dell-inspiron-1545-laptop-battery\"](\"https:\/\/www.battaussie.com\/blog\/wp-content\/uploads\/2014\/11\/9-cell-dell-inspiron-1545-laptop-battery.jpg\")
<\/a>\nMore recently, Panel Self-Refresh (PSR) technology can lower power use even further by stopping screen refresh if what’s being displayed doesn’t change. This can add as much as 20 minutes to a battery’s run time, according to Ajay Gupta, director of commercial notebook products at HP. PSR is currently used on a limited number of devices, including the HP EliteBook Folio 1040 and the LG G2 smartphone.\u00a0In the long term, display battery power use could decrease by another 40% by using Organic Light Emitting Diode (OLED) screens that produce their own light and don’t require backlighting.<\/p>\n
2. Graphics processors<\/h4>\n
Graphics processors are often integrated into a notebook’s system, but can significantly drain a battery as well. For example, Intel Graphics 4000 and 5000 integrated video chips typically range in power use from about 15 watts for the HD 4200 at the entry level to upwards of 50 watts for the Iris Pro 5200.<\/p>\n
AMD’s Radeon graphics engines also vary in how much\u00a0Dell D620 Battery<\/a>\u00a0power they pull. For instance, the mid-range HD 6290 graphics chip consumes about 18 watts at peak use, while the more sophisticated HD 8650G chip uses upwards of 35 watts.<\/p>\n Many\u00a0high-end engineering and gaming laptops\u00a0also have discrete graphics chips with dedicated memory from Nvidia or AMD that can consume a lot of battery power when they’re being used.<\/p>\n The processor is a power hog, often using as much as half of the total power in a system. Smaller is better; as the size of the microscopic wires and electronic architecture within the chip shrinks with each generation, its power use declines.<\/p>\n A decade ago, the best Intel processors used the company’s 90-nanometer (nm) production process, codenamed Dothan. Today, the company’s Haswell chips have 22nm architecture — less than one-quarter the size and roughly 100,000 times smaller than the width of a pencil point. Chips made with 14nm microarchitecture, a.k.a Broadwell, have been promised for later this year or in early 2015.<\/p>\n Every watt used inside a computer system turns into heat — and so the system has to be cooled in order to keep running. The less power used, the less cooling is needed. As a result, current systems that use power more efficiently also use smaller fans that don’t need to run as often (and so conserve battery power themselves).<\/p>\n3. Processor<\/h4>\n
4. Fan<\/h4>\n
5. AC adapter<\/a><\/h4>\n