Power Connector

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Over time, different ThinkPads have used different power connectors. You can use a higher Amperage rated power supply then your ThinkPad needs, as long as the physical connector is correct. But you should not use a lower Amperage power supply on a ThinkPad needing more Amperage. Doing so will overheat the power supply, and might cause issues such as screen flicker.

Hint:
In case you cannot find your Model ThinkPad listed, or you wish to double check, you can find the required power information on a label on the bottom of your ThinkPad

10.5 V, 1.0 A Power

15 V, 2.0 A Power


16 V, 3.5 A Power

4 pin connector

16 Volt Coax connector

16V coax connector

This is a 2.5/5.5mm barrel connector

3.5 Amps

4.5 Amps

5.6 Amps

20 Volt Coax connector

20V coax connector

3.25 Amps

4.5 Amps

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