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Lenovo G40-70 Power Adapter
If your decision is to purchase a different brand charger, make sure to check both the volts and amps outputs. Due to the fact that one Lenovo adapter is most likely used on other laptop models, make sure you check the part number for the correct one. The Lenovo G40-70 AC adapter is responsible for two things, to charge the onboard battery and powering the laptop. When choosing a new AC adapter, selecting the Lenovo OEM charger is the best one to choose. A universal power adapter is a possibility but only if necessary.
Simple signals the power charger is going out
- The laptop does not operate without the battery installed
- Your Lenovo battery refuses to charge up all the time
- Most Lenovo AC adapters can get quite warm when they are plugged in for a period of time
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