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Lenovo ThinkPad Edge E540 Power Adapter
Because Lenovo has been known to use a single AC adapter that is most likely used on other laptop models, be certain to thoroughly note the part number that is needed for this model. If your decision is to purchase a different brand charger, make note of the output of amps and voltage. Upon choosing a replacement charger, selecting the Lenovo OEM charger is always going to be the safest and easiest way to go. A universal AC adapter is a possibility if you are desperate. The Lenovo ThinkPad Edge E540 power adapter is responsible for two things, to charge the onboard battery and powering the laptop.
Subtle hints the power charger will soon need to be replaced
- Battery does not charge up all the time
- The majority of Lenovo power chargers will get very warm to the touch when they are plugged in for a period of time
- The laptop does not function without the battery installed
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