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Lenovo ThinkPad SL400 Power Adapter
If your decision is to purchase a different brand charger, please check on both the voltage and amperage output. When choosing a new adapter, the actual Lenovo brand is the best one to choose. The Lenovo ThinkPad SL400 AC adapter is needed for two reasons, charging the battery and to provide a source of power for the unit. Because Lenovo uses one power charger that is probably used on other similar units, be sure you choose the right one. A universal power adapter can be used if you absolutely need to.
Important clues of an inadequate laptop charger
- Most Lenovo AC adapters will get warm to the touch when they are plugged in for a period of time
- The unit will not work while just using AC power
- Your Lenovo battery refuses to charge at all
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