Hotplug PSUs are very sturdy — rarely see warranty claims. Safe bet. Always make sure they're tested. Key checks: Make sure tested.
PRODUCT OVERVIEW
Lenovo 135W,20VDC,3P,WW,LTN
Performs to the same specifications as the standard AC adapter that ships with the ThinkPad laptops.<br>Energy efficient with Energy Star V (ES 2.0)<br>Compatible with ThinkPad laptops with rectangular “slim tip” common power plug<br>Not compatible with ThinkPad laptops with the round, barrel-type power plug Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.