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Laptop Adapter compatible for LENOVO (135W 6.75A 20V) Big Pin - 7.9mm x 5.5mm Pin | Suitable for Lenovo ThinkPad Series
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135W Lenovo Compatible Laptop Adapter (20V, 6.75A) – 7.9mm × 5.5mm Big Pin
Robust replacement adapter designed for Lenovo ThinkPad laptops and mobile workstations requiring 135 W power and a 7.9 mm × 5.5 mm big-pin connector. Ideal for high-performance models in the T, W series and other business notebooks.
Technical Specifications
20V — 6.75A (135W)
7.9mm × 5.5mm (Big Pin)
100–240V AC
Heavy-duty cable & housing
OVP / OCP / SCP Multi-layer Safety
1 Year Replacement
Key Advantages
Delivers reliable power for demanding Lenovo ThinkPad business notebooks, mobile workstations and pro use.
Ensures a secure fit and optimal power delivery for compatible Lenovo systems.
Protects your laptop with built-in circuits against over-voltage, short-circuit and overload.
Operates with minimal heat during extended workloads and professional usage.
Compatibility
Perfect for Lenovo systems requiring 20V/6.75A with a 7.9mm × 5.5mm Big Pin connector. Includes many Lenovo ThinkPad models such as:
| Lenovo Series | Supported Models |
|---|---|
| ThinkPad T5xx / T4xx Series | T400s, T410, T410i, T410s, T410si, T420, T420s, T430, T430i, T430s, T510, T510i, T520, T520i, T530, T530i |
| ThinkPad W / Mobile Workstations | W500, W510 |
| ThinkPad T500 / T530 / T510 etc. | ThinkPad T500, ThinkPad T530, ThinkPad W510, ThinkPad T520, ThinkPad W500, ThinkPad T510 |
What's Inside the Box
- 1 × Lenovo Compatible 135W Big Pin Adapter
Installation & Safety Tips
- Ensure your laptop uses 20V/6.75A and the 7.9 mm × 5.5 mm Big Pin connector before use.
- Avoid bending or twisting the power cable near the connector.
- Keep the adapter ventilated; avoid covering it while in use.
Frequently Asked Questions
Can I use this adapter for my ThinkPad T530 or T520?
Yes — this adapter supports T530, T530i, T520, T520i models using the 20V/6.75A with 7.9×5.5mm connector.
Will it support mobile workstation usage?
Yes, the 135W output and Big Pin design allow for heavier workloads with suitable Lenovo systems.
Is there warranty included?
Yes — the product includes a 1-year replacement warranty.
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