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Lenovo ThinkPad T21 Battery
Your Lenovo ThinkPad T21 battery allows you to move freely about so as to work or play where you want. Because no battery is the same, make sure and double-check the physical connection and size and compare it to the one you are going to replace. Buying a battery with a higher milliamp rating is fine, it just means the battery will go further on a single charge. What really is critical to a battery fitting your laptop 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 when fully charged.
Symptoms of a bad Lenovo battery
- The unit will not turn on when not connected to the charger
- The battery has its case swollen and looking like it is going to burst
- The laptop lasts less than half an hour while using the battery only
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