Lenovo 4X21M37469 power adapter/inverter Indoor 100 W Black

The Lenovo 4X21M37469 100W Indoor Black power adapter is a compact replacement charger for compatible Lenovo laptops and other portable devices that accept a 100W external adapter. Designed for indoor use, it accepts a wide input voltage range and delivers stable power output with passive cooling. The adapter's black finish and compact footprint make it convenient to carry in a laptop bag or keep on a desk as a primary or spare power source.

Advantages

This 100W power adapter provides reliable power delivery for charging and operating laptops that require higher wattage. Its wide input voltage range supports 100–240V mains supplies, allowing use in different regions with appropriate plugs. The passive cooling design reduces moving parts and noise, while the compact physical dimensions and modest weight make it practical for travel and everyday portability. Multiple safety certifications ensure protection against common electrical faults.

Suitable for

• Charging Lenovo laptops and compatible notebooks that require up to 100W power
• Use as a replacement or spare adapter in home, office, or travel kits
• Powering compatible portable devices that accept external 100W adapters

Key specifications

• Power output: 100W
• Input voltage: 100–240V AC
• Cooling: passive (fanless)
• Colour: Black
• Weight: 0.55 kg
• Dimensions (W × D × H): 108 × 56.5 × 37 mm
• Intended use: indoor

How to use

Connect the adapter to a compatible laptop following the device manufacturer's guidance for connector type and polarity. Plug the adapter into a suitable mains outlet within the specified 100–240V range and confirm that the laptop indicates charging. Avoid exposing the adapter to moisture, extreme temperatures, or direct sunlight. Unplug from the mains when not in use and disconnect from the laptop before storing.

Recommendations

Use the adapter with devices that match the power and connector requirements. If you travel internationally, use an appropriate mains plug adapter and verify local voltage compatibility. Inspect the cable and connectors periodically for wear; replace the adapter if you notice damage, overheating, or irregular charging behaviour.