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Dell Precision M40 Power Adapter
If buying off-brand, make sure to check both the volts and amps outputs. Upon choosing a replacement charger, selecting the Dell OEM charger is usually going to be the safest choice. Because Dell uses one power charger that can be used on other units, be sure you choose the right one. A universal power adapter is another possibility if you are desperate. The Dell Precision M40 power adapter is needed for two reasons, to charge any and all batteries and to provide a source of power for the unit.
Clues your laptop charger is going out
- The unit will not work while just using AC power
- Your Dell battery refuses to charge all the time
- Most Dell adapters will get very warm to the touch when plugged in for 10 minutes or more
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It is always best to double-check the model number before buying a power adapter replacement. Dell Precision M40 power adapter should be purchased in new condition for obvious reasons, including possible wear on any older used one. Try to always order computer parts from a site you know if you purchase through a website. The Dell laptop will be better off if you purchase parts smartly!
Feel free to download your manual for help.
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