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Lenovo ThinkPad 4291 Power Adapter
If your decision is to purchase a different brand charger, it is imperative to note the output of amps and voltage. The Lenovo ThinkPad 4291 AC adapter is responsible for two things, to charge the onboard battery while simultaneously providing power for the laptop. A universal power adapter can be used if you are desperate. Due to the fact that one Lenovo adapter powers multiple other machines, make sure you check the part number for the correct one. When choosing a new charger, choosing the Lenovo brand one is always going to be the safest and easiest way to go.
Chief elements of a weakening Lenovo power adapter
- The laptop does not work using just the AC power adapter
- Most Lenovo AC adapters will get very warm to the touch when plugged in for 10 minutes or more
- Your Lenovo battery refuses to charge all the time
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