33.54 GBP
Lenovo 45N0238
The Lenovo 45N0238 is a black, indoor power adapter/inverter designed for use with the Lenovo computer system. With a 90-watt output capacity, it ensures efficient and reliable power supply to your device
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Lenovo 45N0238 Power Adapter – Technical Overview
The Lenovo 45N0238 is a dedicated 90‑Watt AC power adapter engineered for Lenovo notebooks, most notably the ThinkPad X1 Carbon. Designed as an indoor unit, it delivers a stable 20 V output at 4.5 A to meet the high performance demands of modern ultrabooks.
Key Electrical Specifications
- Output Power: 90 W (20 V × 4.5 A)
- Input Voltage Range: 100–240 V AC, worldwide compatibility
- Input Frequency: 50/60 Hz
- Output Current: 4.5 A
- Output Voltage: 20 V DC
- Operating Temperature: 8 °C to 80 °C
- Operating Humidity: 8%–80%
- Width: 50 mm (5.0 cm)
- Depth: 126 mm (12.6 cm)
- Height: 30 mm (3.0 cm)
- Weight: 360 g (0.36 kg)
The adapter features a sleek black enclosure, matching the aesthetic of Lenovo’s premium notebook line. Its compact form factor allows easy placement on desks or in travel bags without adding bulk. The robust housing is engineered to withstand typical indoor usage conditions, ensuring reliable performance over extended periods.
Compliance with international safety and electromagnetic compatibility standards guarantees safe operation across diverse regions:
- UL, C‑UL, CE, NEMKO, PSE, KETI Mark (Korea)
- S Mark (Argentina), PSB, GOST, C‑Tick, BSMI NOM (Mexico)
- FCC, CCC (Safety & EMI), ICES Serbia, CB Certificate/Report
- AU/N. Zealand Safety Number, Croatia EMC Approval, ENEC
The 45N0238 is specifically tailored for Lenovo’s high‑performance notebooks. While it is most commonly paired with the ThinkPad X1 Carbon, it also supports other models within the ThinkPad family that require a 20 V, 4.5 A input. The adapter’s indoor designation means it should be used in standard office or home environments rather than outdoor or industrial settings.
The unit comes with a proprietary Lenovo connector designed to fit the charging port of compatible notebooks securely. The cable length is optimized for desk use, providing sufficient reach without excessive slack that could lead to tangling or accidental disconnection.
- Plug the adapter into a grounded wall outlet within the 100–240 V range.
- Connect the cable to the notebook’s charging port, ensuring a snug fit.
- Verify that the LED indicator (if present) shows normal operation before use.
- Avoid exposing the unit to extreme temperatures or high humidity beyond specified limits.
- Inspect the cable and connector for visible wear; replace if frayed or damaged.
- If the notebook does not charge, check that the outlet is functioning and that the adapter’s LED indicator shows power.
- Do not attempt to modify the internal components; any repair should be performed by authorized service personnel.
The adapter complies with RoHS directives, ensuring reduced hazardous substances. Its efficient 90‑W output minimizes energy consumption compared to older, higher‑power adapters, contributing to lower electricity usage and heat generation.
A one‑year warranty is provided for the unit, covering manufacturing defects under normal use conditions. The adapter is a customer replaceable unit, allowing users to procure replacements directly through Lenovo’s service channels if needed.
Conclusion
The Lenovo 45N0238 power adapter exemplifies the brand’s commitment to delivering reliable, high‑quality charging solutions for its flagship notebooks. With robust safety certifications, precise electrical performance, and a design that complements Lenovo’s premium aesthetic, it remains an essential component for users seeking uninterrupted productivity on their ThinkPad X1 Carbon or other compatible models.
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Category
This product is cataloged in our store in these categories
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- Chargers and adapters for laptops |
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International
Find this product in one of our international stores
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| Colors
Predominant colors of the product |
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| Tags | Lenovo 45N0238 |
| Identifiers | |
| Brand | ![]() Lenovo is a Chinese technology company that produces a wide range of electronics, including laptops, tablets, smartphones, and servers. The company is headquartered in Beijing, and has a large international presence. Lenovo is the world's largest PC vendor, and is also a major player in the smartphone and tablet markets. |
| Model | Lenovo FRU45N0238 |
| MPN | Lenovo FRU45N0238 |
| ID | 14417505 |
| Dimensions / Weight | |
| Key Features | |
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Brand compatibility A list of brand names that the product is compatible with. Each entry represents a manufacturer whose products can be used with or alongside the item.
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Lenovo |
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Case colour The colour or combination of colours that a product’s outer shell or enclosure is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the case for consumers.
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Black |
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Compatibility A list of brand names, model numbers or product types that the item is compatible with. Each entry should be separated by commas to allow easy searching and comparison across products.
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ThinkPad X1 Carbon |
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Depth The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
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12.6 cm |
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Form factor Specifies the physical configuration or design of a product, such as ATX, Micro‑ATX, Mini‑ITX, tower, case with cover, etc. It describes how the device is built and what mounting or expansion options it supports.
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External |
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Height The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
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3.0 cm |
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Input frequency The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.
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50/60 Hz |
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Input voltage The range of alternating current voltage that a charger or power supply can accept, expressed in volts (V). It specifies the minimum and maximum input voltages compatible with the device.
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100-240 V |
| Operating humidity | 8 to 80 % |
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Output current The electrical current drawn by a device from its power source, expressed in amperes (A). It indicates how much current the product consumes during normal operation and helps determine compatibility with power supplies or USB ports.
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4.5 A |
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Output Power The electrical power that a device can deliver or consume, expressed in watts (W). It represents the actual power output under normal operating conditions and is useful for comparing performance across similar devices.
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90 W |
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Output voltage The electrical potential difference that a device delivers to its load, expressed in volts (V). It indicates the nominal voltage supplied by the product’s power output and is useful for matching it with compatible accessories or systems.
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20 V |
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Power adaptor type The classification of the power adaptor used with a device, indicating whether it is external or internal, its electrical interface (AC, DC, USB‑Charging, etc.), and any specific form such as integrated or travel adapters. This attribute helps buyers understand how the device receives power and what kind of connector or cable is required.
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AC |
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Power supply type The type of electrical supply that powers the device, such as mains AC, DC, USB, battery, or a combination of these options.
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indoor |
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Purpose The purpose indicates the primary function or intended use of a product, such as "Notebook", "Gaming", or "Server". It helps customers quickly identify whether the item matches their needs and can be used for filtering or categorization across different product categories.
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Notebook |
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Warranty The length of time for which the manufacturer guarantees that the product will be free from defects in materials and workmanship, typically expressed in years or months.
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One year, Customer Replaceable Unit. |
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Weight The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.
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0.36 kg |
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Width The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.
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5.0 cm |

