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Lenovo ThinkPad T400 Battery
Your Lenovo ThinkPad T400 battery makes your laptop portable so that you can use it where you want. It is OK to buy a battery with more milliamps, as it suggests the battery will last a bit longer on one charge. What really is critical to a battery fitting your laptop is the connection type and physical size of the battery. Because no battery is 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. More amps in a battery basically means the longer you will be able to use the laptop on one charge.
Key clues of a declining Lenovo battery
- The battery has its case swollen and looking like it is going to burst
- The laptop will not turn on while unplugged
- The laptop lasts under 20 minutes before it dies
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