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Lenovo ThinkPad 390E Power Adapter
When purchasing a replacement AC adapter, selecting the Lenovo OEM charger is the best one to choose. Because Lenovo has been known to use a single AC adapter that can be used on other units, double-check the part number or model number of the adapter. The Lenovo ThinkPad 390E power adapter has two main uses, charging the battery and powering the laptop. If you decide to buy an non-Lenovo adapter, make sure to check the output of amps and voltage. A universal power adapter is a possibility if yours is unavailable or backordered.
How can I tell if my Lenovo AC adapter is about to fail?
- Battery does not charge every time
- The laptop does not function using just the AC power adapter
- Most Lenovo adapters will get warm to the touch when plugged in for any length of time
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