Can I use an old power supply on my new laptop? 1

[dougconran]

Hi, I have a new (last year) IBM X31 laptop which has replaced and earlier model IBM Thinkpad. Can you use the power supply from the previous machine on the new one so that I have a backup for home?

What are the numbers that I should be checking and what sort of tolerance would be acceptable to avoid blowing something up?

TIA

Doug

 

[edfair]

If an AC adapter like earlier thinkpads you would want the old one to be used as backup to have a voltage rating equal to or higher by maybe 15% and a current availability the same or higher.

Ed Fair
Give the wrong symptoms, get the wrong solutions.

 

[bcastner]

The ThinkPad 72 Watt AC adapter and DC adapter are supported with the following systems:

ThinkPad A20m, A20p, A21e, A21m, A21p, A22e, A22m, A22p, A30, A30p, A31, and A31p systems
ThinkPad R30, R31, and R32 systems
ThinkPad R40, R40e, R50, R50e, R50p, and R51 systems
ThinkPad T20, T21, T22, T23, T30, T40, T40p, T41, T41p, T42, T42p, T43, T43p systems
ThinkPad X20, X21, X22, X23, X24, X30, X31, and X40 systems

http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-4PJRRG