Charger for Lenovo ThinkPad T520 4242-39U 20V 6.75A 135W Specifications
Adapter Type: Lenovo ThinkPad AC Power Adapter
Laptop Model: Lenovo ThinkPad T520 4242-39U
Output Voltage: 20V DC
Output Current: 6.75A
Output Power: 135W
Input Voltage: 100–240V AC
Input Frequency: 50–60Hz
Connector Type: 7.9mm x 5.5mm Round Barrel Connector
Included Accessories: AC Power Cord
Compatibility: Lenovo ThinkPad T520 series and compatible ThinkPad models
Adapter Design: High-power Lenovo adapter for professional laptops
Warranty: The warranty tendered hereunder, on the electronic product(s) sold under this invoice will be provided exclusively by their respective Authorized Agents/Distributors and are limited to the period indicated from the date ofyour invoice, except otherwise mentioned as per the warranty conditions as carried along with the products(s)
Charger for Lenovo ThinkPad T520 4242-39U 20V 6.75A 135W Overview
The Charger for Lenovo ThinkPad T520 4242-39U 20V 6.75A 135W AC Adapter Power Supply is a powerful replacement charger designed for Lenovo ThinkPad T520 laptops. It provides 20V DC output at 6.75A, delivering 135W of power for efficient charging and stable laptop operation.
Designed for Lenovo’s business-class ThinkPad range, this adapter supports demanding workloads including professional applications, multitasking, engineering software, and extended office use. The 135W output provides more power capacity than standard 65W and 90W ThinkPad adapters.
The charger features a durable Lenovo-compatible connector and includes an AC power cord, making it suitable for home, office, and travel use.
Not compatible with this round barrel adapter version.
USB-C Power Delivery
Used on modern Lenovo laptops.
Not supported on ThinkPad T520 charging systems.
Charger for Lenovo ThinkPad T520 4242-39U 20V 6.75A 135W FAQs
1. Is this charger compatible with Lenovo ThinkPad T520 4242-39U?
Yes. It is designed for Lenovo ThinkPad T520 models requiring a 20V 6.75A 135W adapter.
2. What is the charger output specification?
The adapter provides 20V output at 6.75A, delivering 135W power.
3. Does it include a power cord?
Yes. The charger comes with an AC power cord for connection to wall outlets.
4. Can I use a 90W charger instead?
A 90W charger may work for some basic configurations, but the recommended charger for full ThinkPad T520 performance is the 135W adapter.
5. Does it support worldwide voltage?
Yes. It supports 100–240V AC input with 50/60Hz frequency compatibility.
6. Does it have safety protection?
Yes. Quality Lenovo adapters include protection against over-voltage, over-current, overheating, and short circuits.
Charger for Lenovo ThinkPad T520 4242-39U 20V 6.75A 135W Conclusion
The Charger for Lenovo ThinkPad T520 4242-39U 20V 6.75A 135W AC Adapter Power Supply is a reliable high-power replacement charger for Lenovo ThinkPad T520 users. With 20V output, 6.75A current, 135W power, a compatible 7.9mm x 5.5mm connector, universal 100–240V input, and included power cord, it delivers stable and efficient charging for professional computing needs.
