Lenovo ThinkPad 170W power adapter/inverter Indoor Black

The Lenovo ThinkPad 170W power adapter provides reliable AC power for compatible ThinkPad laptops. Designed for indoor use, it delivers power and recharges the system battery when plugged into a standard wall outlet. The compact black adapter meets Energy Star V (ES 2.0) efficiency requirements and performs to the same specifications as the standard adapter supplied with ThinkPad models. Model number: 4X20E50578.

Advantages

The adapter is compact and energy-efficient, supporting a wide input voltage range (100–240V) for use with various power sources. It is backed by a 1 year warranty and matches the performance of the original ThinkPad AC adapter. Its black finish integrates with most laptop designs.

Suitable for

• Providing AC power to compatible ThinkPad laptops with the rectangular “slim tip” power plug
• Recharging the internal battery during stationary or mobile use
• Keeping spare adapters at home, office, or in a carrying case for convenience

Key specifications

• Model: 4X20E50578
• Power output: 170W
• Input voltage: 100–240V
• Connector type: rectangular “slim tip” (not compatible with round barrel-type plugs)
• Colour: Black
• Warranty: 1 year

How to use

Connect the AC adapter to a compatible ThinkPad laptop by inserting the rectangular slim-tip plug into the laptop power inlet. Plug the adapter into a standard wall outlet within the specified input voltage range (100–240V). The adapter will provide AC power and recharge the laptop battery while in use. Disconnect the adapter by removing the plug from the laptop and then from the wall outlet when power is no longer required.

Recommendations

Use the adapter indoors and avoid exposure to moisture or extreme temperatures. Ensure the laptop model supports the rectangular slim-tip connector before use; do not attempt to force incompatible plugs. For safe operation, route cables to prevent tripping hazards and unplug the adapter during thunderstorms or prolonged disuse.