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Lenovo ThinkPad R400 Battery
Your Lenovo ThinkPad R400 battery makes your laptop portable so as to work or play anywhere you please. More amps in a battery basically means the longer you will be able to use the laptop on a single charge. Because no battery is the same, be sure to check the part number of the new battery and compare it to the old one. Buying a battery with a higher milliamp rating is fine, as it just means the battery will last longer. What is truly important is the connection type and physical size of the battery.
Cues of a weakening li-ion battery
- The laptop lasts under ten minutes while using the battery only
- The unit is unable to boot up at all when unplugged
- The laptop battery has its case swollen like its about to burst
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