otal Micro's family of notebook batteries provides upgrades and replacement units. Total Micro builds all its products using state of the art equipment and premium grade energy cells. This battery Total Micro makes will meet the original computer maker's specifications and in many cases Total Micro's replacement battery will be higher in performance offering an increase in computing time and a longer overall life span. Inside every notebook battery is a grouping of "energy cells" containing chemical mixtures that provide an electrical current to power the notebook computer. This is the primary component of any battery and the quality and performance of these cells determines not only how long a battery will operate before needing to be recharged, but also the number of charge/discharge cycles the unit will sustain. High quality cells typically will provide several years of charge/discharge performance and several hours of computing time per full charge.