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Lenovo ThinkPad T420 Power Adapter
The Lenovo ThinkPad T420 AC adapter provides two functions, charging the battery while simultaneously providing power for the laptop. Upon choosing a replacement adapter, the actual Lenovo brand is the best one to choose. If your decision is to purchase a different brand charger, please check on the output of amps and voltage. Because Lenovo has been known to use a single AC adapter that is most likely used on other laptop models, be certain you select the correct one for the ThinkPad T420 model. A universal AC adapter is a possibility if yours is unavailable or backordered.
Simple indications of a weakening charger
- Battery does not charge up whatsoever
- The unit will not work using just the AC power adapter
- Most Lenovo AC adapters will get warm to the touch when plugged in for any length of time
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Try to always purchase computer parts from a reputable seller if you purchase through a website. Your Lenovo ThinkPad T420 will thank you for ordering smartly online. Lenovo ThinkPad T420 power adapter is best purchased in factory new condition due to the wear on any old power adapter that may occur. It is in your best interest to re-check the manufacturers part number so you order the correct power adapter replacement.
Feel free to download your manual for help.
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