, but, like all batteries, they are able to only final for so long. to be able to maximize the quantity of battery like you have away from your Dell battery, you can perform many things to optimize your laptop. Optimization techniques include turning cutting display brightness, producing sure that unnecessary radio mechanisms are off, like Wi-Fi and Bluetooth, adjusting processor settings, and producing sure that power settings are turned up so that the laptop computer goes into display saver / hibernates quite quickly.