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Toshiba Satellite M640 Battery
Your Toshiba Satellite M640 battery allows you to move freely about which gives you the opportunity to use it where you want. Not all batteries are the same, make sure and double-check the physical connection and size and compare it to the one you are going to replace. It is OK to buy a battery with more milliamps, it just means the battery will go further on a single charge. What is truly important is the physical size of the battery as well as the connection. The more power the battery has, the longer you will be able to use the laptop on one charge.
How do you know when your li-ion battery is about to go out?
- The laptop battery has its case swollen like its about to burst
- The laptop lasts less than an hour while using the battery only
- The unit does not turn on when not connected to the charger
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