If you're looking for a Lenovo laptop charger with the new pin and specifications of 20V - 2.25A, here's what you need to consider:

1. Compatibility:

• Ensure the charger is specifically designed for your Lenovo laptop model. Lenovo laptops use various pin configurations, so the new pin style might refer to the Slim-tip or Round-tip connectors. It's important to check which one your laptop uses.

• The output specifications of 20V and 2.25A indicate that it is a 45W power adapter. If your laptop requires more power (such as 65W, 90W, or 135W), make sure to get the charger that matches your laptop's power requirements.

2. Third-Party Chargers:

• If you opt for a third-party charger, make sure it meets the required output (20V-2.25A) and has a compatible pin connector.
• Check user reviews and ratings to ensure reliability and avoid overheating or damage to your device.

3. Voltage and Amperage:

• Voltage (20V) is critical for proper functioning, while amperage (2.25A) refers to how much current the charger can provide. A charger with the same voltage but a higher amperage (e.g., 2.5A or 3A) will still work, but not the reverse (lower amperage).

Would you like help finding a compatible charger for your specific laptop model?