Lenovo 65W/45W power adapter 4.0×1.7mm ⚡

This compact replacement power adapter is designed for Lenovo laptops and offers 65W or 45W output options with a 4.0 x 1.7mm connector, making it suitable for everyday charging at home, the office or on the move. It aims to supply stable power for models such as Ideapad, V-series and Yoga machines while keeping portability and basic protection features in mind.

Key Points

The adapter includes an intelligent protection chip that guards against short circuits, overcurrent, overvoltage, overheating and overcharging, according to the manufacturer. The cable is 2.3 metres long, which helps when wall sockets are not immediately next to a workstation. The plug is reinforced to resist wear from daily use and frequent plugging and unplugging, improving durability for travel or regular commuting. Consider that compatibility depends on the correct connector size and the laptop’s required wattage.

Technical Specifications

• Name: Lerobo 65W/45W replacement power adapter
• Connector size: 4.0 x 1.7 mm
• Input: 100–240 V AC, 50/60 Hz
• Output: DC 20 V 3.25 A (65 W) and a 45 W variant available
• Cable length: 2.3 m

Practical Tips

When using this adapter, check the voltage and connector match your laptop model before connecting. The reinforced plug reduces the chance of loose contacts over time, though frequent bending of the cable close to the connector should still be avoided to extend its service life. For longer sessions, place the adapter on a hard, ventilated surface to help dissipate heat.

Compatibility Notes

This charger lists broad compatibility with many Lenovo Ideapad lines including 1, 3, 5 series and numerous model codes, as well as V14, V15, V17 and Yoga 510, 520, 710 and 720 variants. Fitment is provided for a long list of specific chassis and part numbers that commonly use the 4.0 x 1.7 mm plug. If your laptop is one of the models mentioned, the Lerobo 65W/45W may be a suitable replacement, but cross-check the exact model number and required wattage before use.