AC Power Adapter Lenovo 90W SA10M42797 for Lenovo Laptops, 90W Output, Compatible Model Accessory

The Lenovo 90W AC power adapter SA10M42797 is a mains-to-DC power supply designed for compatible Lenovo laptops. It provides a 90W output to charge battery packs and power the notebook during use. Intended as a replacement or spare adapter, the unit supports everyday charging needs at home, in the office or on the move and restores device operation when an original adapter is unavailable.

Advantages

This 90W Lenovo AC adapter offers stable power delivery with built-in protection against common electrical issues such as overcurrent and short circuits. The compact rectangular adapter body and integrated cable routing are intended to simplify storage and transport. Designed for compatibility with specific Lenovo notebook input requirements, it converts mains voltage to the DC voltage required by the laptop and maintains consistent output under normal operating conditions.

Suitable for

• Charging and powering compatible Lenovo laptops
• Using as a replacement for a lost or damaged original adapter
• Portable use during business travel or commuting
• Office and home workstation setups requiring stable 90W power

Key specifications

• Rated output power: 90W
• Function: AC to DC power conversion for laptops
• Casing: compact rectangular adapter body with attached DC cable
• Protection features: built-in overcurrent and short-circuit protection
• Usage environment: indoor use with standard mains voltage

How to use

Connect the adapter to a compatible mains outlet using the supplied detachable mains lead (if provided) or the local power cord, then insert the DC plug into the laptop power inlet until it seats firmly. Ensure the laptop is switched off or in a low-power state during the initial connection if recommended by the laptop manufacturer. Monitor charging status using the laptop’s charge indicator and disconnect the adapter by unplugging the DC connector first and then removing the mains lead when charging is complete.

Recommendations

Use the adapter in a ventilated area away from liquids and excessive heat. Verify compatibility with the laptop’s required input voltage and connector type before first use. Do not attempt to open or modify the adapter housing. For best results, replace damaged cables or connectors and use manufacturer-approved power cords.