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Lenovo IdeaPad S405 Power Adapter
Due to the fact that one Lenovo adapter powers multiple other machines, double-check the part number or model number of the adapter. When purchasing a replacement adapter, choosing the Lenovo brand one is the best one to choose. A universal power adapter is another possibility but only if necessary. If buying off-brand, please check on the output of amps and voltage. The Lenovo IdeaPad S405 power adapter is needed for two reasons, charging the battery and powering the laptop.
Clues your AC adapter has little time left
- Most Lenovo AC adapters will get warm to the touch when plugged in for 10 minutes or more
- Battery does not charge up every time
- The unit will not operate without the battery installed
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