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Lenovo ThinkPad T400S Power Adapter
The Lenovo ThinkPad T400S AC adapter provides two functions, to charge the onboard battery while simultaneously providing power for the laptop. If your decision is to purchase a different brand charger, make note of both the volts and amps outputs. Due to the fact that one Lenovo adapter can be used on other units, be certain you select the correct one for the ThinkPad T400S model. When purchasing a replacement AC adapter, choosing the Lenovo brand one is the best one to choose. A universal AC adapter is another possibility if yours is unavailable or backordered.
Symptoms of a worsening charger
- Most Lenovo AC adapters get warm when plugged in for 10 minutes or more
- Battery does not charge up whatsoever
- The laptop does not operate while solely using the AC adapter
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