Description
Power your Lenovo laptop or compatible device with confidence using this high-quality 20 W Laptop Adapter Charger (5 V 4 A, 3.5 × 1.35 mm). Designed with precision and reliability in mind, this adapter offers a compact yet robust power solution for users in Bangladesh—whether you’re working from home in Dhaka, studying in Chittagong, or travelling across the country.
Unlike generic low-cost chargers that can overheat, under-deliver or risk damage to your device, this adapter is engineered to meet rigorous standards. With its stable output of 5 V at 4 A, it ensures consistent performance for laptops and tablets requiring this specification. The 3.5 × 1.35 mm barrel plug is specifically chosen for many models in the Lenovo IdeaPad and Miix series, offering a secure, snug fit.
From its internal construction—copper wiring, efficient PCB design, thermal management—to its outer casing, this adapter is built to deliver long-term reliability. It accommodates fluctuating power conditions common in Bangladesh, thanks to its wide-range AC input and built-in protection features. You’ll get fewer interruptions, safer usage, and greater peace of mind.
We back this product with a full 12-month warranty, so you can purchase and use with confidence. Should any manufacturing defect arise under normal usage, you’ll receive local support in Bangladesh, saving you the headache of imported or grey-market items.
Key Features & Benefits
True 20 W output: Rated 5 V at 4 A, delivering consistent power to compatible laptops and devices.
Precision 3.5 × 1.35 mm barrel plug: Ensures perfect fit with supported Lenovo models for secure and reliable connection.
Wide AC-input support: Designed to operate from typical Bangladesh mains supply and is tolerant of minor voltage fluctuations.
Built-in safety protections: Features over-voltage, short-circuit, over-current, and overheating protection for reliable safety of both adapter and your device.
Compact & lightweight design: Easy to carry in a laptop bag or backpack—ideal for mobile professionals, students, and frequent travellers.
12-month local warranty: Full peace of mind with service support in Bangladesh—no need to rely on overseas warranty logistics.
Optimised for Bangladesh usage: Designed taking local power-grid conditions into account, so you get better durability and performance.
Core Specifications
Output Voltage: 5.0 V DC
Output Current: 4.0 A
Output Power: 20 W (5 V × 4 A)
DC Plug Size: 3.5 mm outer diameter × 1.35 mm inner diameter
Connector Polarity: Centre positive (shell negative) – standard for the compatible devices (please check original adapter)
AC Input Range: 100-240 V AC, 50/60Hz (universal)
Colour: Black (standard)
Warranty: 12 months from date of purchase
Suitable for laptops/tablets from Lenovo requiring 5 V/4 A input and 3.5 × 1.35 mm plug; confirm original adapter label before purchase
Compatibility Notes & Usage Tips
Before placing your order, please verify the following to ensure full compatibility:
Check the label of your original adapter — it must state an output of “5 V – 4 A” (or equivalent) and ideally the same plug size (3.5 × 1.35 mm).
Ensure the DC input socket on your laptop or device matches the 3.5 × 1.35 mm barrel dimension and that the polarity is centre positive.
If your original adapter has higher voltage or different plug size (e.g., 12 V, 20 V, or a different barrel size), this adapter will not be suitable.
Although the adapter is designed for Bangladesh power conditions, it is wise to use a surge protector or voltage stabiliser to prolong its life and protect your device from unpredictable fluctuations.
After you receive the adapter, plug it in and let your device charge for the first 15-20 minutes in a safe environment. Monitor the adapter for any unusual heat build-up; some warmth is normal, but excessive heat should be reported under warranty.
Why Choose This Adapter?
In Bangladesh’s market, many users resort to generic, low-cost chargers that might save upfront money—but can compromise safety, reduce device lifespan, or cause performance issues like slow charging, overheating or battery degradation. Choosing this genuine 20 W adapter offers:
Reliable and stable power delivery for your Lenovo-compatible laptop or tablet.
Safety features and proper engineering that protect your device and your data.
A full one-year local warranty, meaning you don’t have to worry about replacement or service delays.
Confidence that you are using a power accessory designed for your specific power usage scenario rather than a mis-matched universal unit.
Tags
Laptop adapter Bangladesh, 20 W laptop charger Bangladesh, 5 V 4 A adapter Bangladesh, 3.5×1.35mm laptop charger Bangladesh, Lenovo compatible adapter Bangladesh, original laptop adapter Dhaka, laptop power supply Bangladesh, Lenovo IdeaPad charger Bangladesh.
Package Includes
1 × Original 20 W Laptop Adapter (5 V 4 A) with 3.5 × 1.35 mm plug
1 × AC Power Cable (Bangladesh plug standard)
Warranty Card (12 months)
User Guide / Safety Instructions
Warranty & After-Sales Service
This adapter comes with a 12-month manufacturing warranty covering defects in materials or workmanship under normal use. If you face any issue during this period, simply contact our authorised service centre in Dhaka with your purchase receipt and warranty card. Please note the warranty does not cover damage caused by incorrect usage (wrong voltage input, physical damage, liquid intrusion, unauthorised modifications) or wear due to misuse.
Final Note
Make the smart choice and equip your Lenovo-compatible laptop or device with this high-quality, original 20 W adapter. Affordable, reliable and backed by local service in Bangladesh—perfect for students, professionals, freelancers, or everyday users. Replace your worn-out charger and say goodbye to unreliable power. Order now and experience uninterrupted productivity!



















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