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Samsung NP540U4E Battery
Your Samsung NP540U4E battery allows you to move freely about so that you can use it inside, outside or anywhere your heart desires. The larger the battery, the longer you will be able to use the laptop on a single charge. It is OK to buy a battery with more milliamps, as it signifies that the battery can last for a longer period of time on one charge. What really is critical to a battery fitting your laptop is the physical size of the battery as well as the connection. Not all batteries are the same, be sure to check the part number of the new battery and compare it to the one you are going to replace.
Signs of a laboring battery
- The laptop battery has its case swollen and looks like it will explode
- The laptop lasts under 20 minutes before it shuts itself down
- The unit refuses to turn on at all when unplugged
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