3 cell battery life is approximately 3 hours; 6 cell is 6.5 hours
The battery time can vary from notebook to notebook. On average, a HP notebook battery can last anywhere from four to eight hours on a single battery charge.
ampere-hours
The notebook battery is an important feature to consider when buying a new notebook. The type of notebook battery included by the manufacturer determines the laptop's battery life. Most notebooks come with a 6-cell battery, but a few notebooks come with a 9-cell battery. The higher the number of cells, the longer the notebook can function on its battery. Many laptop manufacturers allow you to upgrade to a higher-quality battery for an additional cost when buying a new laptop.
The Dell Latitude D610 Notebook has an average battery life of 4 hours depending on power settings and applications running.
The HP Compaq Business Notebook 2710p is rated at a battery life of 5 and 1/2 hours with a full charge.
Most notebook computer manufacturer shoot for 1.5 to 2.5 hours of battery life for a system with enough performance to replace a desktop system. For ultra portables (netbooks, etc.) the ratings go much higher.
The average notebook battery lasts about 3 years. Its capacity goes down slowly over time and will need to be replaced. They can tend to be pricey, so make sure and shop around.
The HP NB234UA Pavilion dv7-1243cl 17 Entertainment Notebook has an approximate batter life of 5 hours. The expected battery life for this laptop is 2 hours and 10 minutes.
Generally notebooks have less RAM and storage than a desktop. A notebook may also have a short battery life, smaller keyboard, and a touchpad instead of a mouse.
8 hours
The expected battery life for this laptop is about 4 hours.
Release a latch and then remove the battery, then install charged battery into laptop.