a. How Much Battery Life Do You Need?
If you plan to use your VAIO PCG-V505 notebook away from your desk, you will want a PCG-V505 laptop battery replacement with a bare minimum of three hours of endurance (with four to five hours being preferable), because even when carrying a notebook around the home or office, being chained to an outlet is extremely inconvenient. If you use your PCG-V505 in public places (coffee shops, outdoors, planes, etc.), you want a minimum of four and a half hours of endurance (with six or more hours preferred).
b. How Much Battery Capacity Do You Need?
While battery capacity is the most important factor affecting battery life, you can’t tell just from the battery specs how long a notebook will last. The battery life is based on the power settings you use and the tasks you perform. For example, if you play games with your Vaio laptop, the PCGA BP2V battery may get less than two hours of endurance out of high-capacity battery, and while you only access the Internet, a lower-capacity PCGA BP2V battery can last more than three hours.
However, it’s clear that the more wattage a battery provides (usually measured in either milliamps or killowatt hours), the better. Most vendors do not advertise the amount of wattage a battery provides, but rather the number of cells inside the battery. And more cells almost always equal more juice.
c. What is the Right Cell Number Do You Need?
While there are batteries with two, four, or eight cells, most come in three-, six-, or nine-cell packs. If long battery life is important to you, always choose the the largest number of cells available. Whatever you do, don’t settle for a three-cell battery; notebooks with three-cell batteries tend to get less than three hours of battery life. Batteries larger than six cells—often referred to as “extended batteries”—may add some extra bulk to your notebook, sticking out the back and adding a few tenths of a pound to the weight. However, if you need long endurance, this extra weight is worth it.
d. Need a Secondary Battery?
Many business notebooks also provide the option to purchase a secondary battery, which kicks in when the main battery runs out of power. Secondary batteries typically slide into the optical drive bay (replacing the optical drive), or attach to the bottom as a battery slice. These secondary batteries add to the cost and sometimes the weight, and slices in particular can make a notebook less comfortable on your lap. However, they can add anywhere from two to six hours of endurance.
More laptop batteries and related info are on LaptopTraveller.com:
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