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Lenovo M490S Battery
Your Lenovo M490S battery allows you to move freely about so that you can use it anywhere in the house or even outdoors! Not all batteries are the same, make sure and double-check the part number of the new battery and compare it to the one you are going to replace. 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. More amps in a battery basically means the longer it will last on one charge.
Major signs the primary battery needs replacing
- The laptop is unable to boot up while unplugged
- The laptop does not last longer than 45 minutes while using the battery only
- The laptop battery has its case swollen and looks like it will explode
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