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Lenovo B40-45 Power Adapter
Upon choosing a replacement adapter, selecting the Lenovo OEM charger is the best one to choose. If buying off-brand, please check on both the voltage and amperage output. The Lenovo B40-45 power adapter is responsible for two things, to charge up the main battery and to provide a source of power for the unit. Because Lenovo has been known to use a single AC adapter that is most likely used on other laptop models, be sure you choose the right one. A universal AC adapter can be used but only if necessary.
What symptoms are present when the charger has gone bad?
- Battery does not charge completely
- The unit will not function while solely using the AC adapter
- The majority of Lenovo power chargers will get warm to the touch when plugged in for any length of time
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It is always best to re-check the part number before placing an order for a new power adapter. Lenovo B40-45 power adapter is going to be better in factory new condition due to possible wear on an older one. Be sure to always order electronic parts from a known seller when you buy your parts online. The Lenovo B40-45 will love you more if you purchase parts smartly!
Feel free to download your manual for help.
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