Power Connector

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

• ThinkPad 220

15 V, 2.0 A Power

• ThinkPad 350, 350C
• ThinkPad 500, 510CS
• ThinkPad 730T

16 V, 3.5 A Power

4 pin connector

4 pin power connector

• ThinkPad 355, 355CS, 355C
• ThinkPad 360, 360CS, 360C, 360P, 360CSE, 360CE, 360PE
• ThinkPad 370C
• ThinkPad 700, 700C
• ThinkPad 720, 720C
• ThinkPad 750, 750CS, 750C, 750P
• ThinkPad 755C, 755CS, 755CSE, 755CE, 755CX, 755CV, 755CD, 755CDV
• ThinkPad 760L, 760LD, 760C, 760CD, 760EL, 760ELD, 760E, 760ED, 760XL, 760XD
• ThinkPad 765L, 765D

16 Volt Coax connector

16V coax connector

This is a 2.5/5.5mm barrel connector

1.9 Amps

• ThinkPad 560, 560E, 560X, 560Z

56W 3.5 Amps

PN 02K6810

• ThinkPad 235
• ThinkPad 240, 240X
• ThinkPad 310, 310D, 310E, 310ED
• ThinkPad 340
• ThinkPad 345CS, 345C
• ThinkPad 365CS, 365C, 365CSD, 365CD, 365E, 365ED, 365X, 365XD
• ThinkPad 380, 380D, 380E, 380ED, 380XD, 380Z
• ThinkPad 385D, 385ED, 385XD
• ThinkPad 390, 390E, 390X
• ThinkPad 535, 535E
• ThinkPad 570, 570E
• ThinkPad 600, 600E, 600X
• ThinkPad 701C, 701CS
• ThinkPad 770, 770E, 770ED, 770X, 770Z
• ThinkPad A20m, A20p, A21e, A21m, A21p, A22e, A22m, A22p, A30, A30p, A31, A31p, A275, A285, A475, A485
• ThinkPad R30, R31, R32
• ThinkPad T20, T21, T22, T23, T30
• ThinkPad TransNote
• ThinkPad X20, X21, X22, X23, X24, X30, X31, X32, X40, X41, X41 Tablet

72W 4.5 Amps

PN 02K6744

• ThinkPad T40, T40p, T41, T41p, T42, T42p, T43, T43p

5.6 Amps

• ThinkPad R40, R40e, R50, R50e, R50p, R51, R51e, R52

20 Volt Coax connector

20V coax connector

3.25 Amps

• ThinkPad X61, X61s
• ThinkPad X300
• ThinkPad X301

90W 4.5 Amps

Adapter PN 92P1107

• ThinkPad R60, R60e
• ThinkPad T60, T60p, T61
• ThinkPad Z60m, Z60t