Charger for Acer  Aspire 5742G 20V 4.5A 90W 

• Type:  Power AC Adapter
• Input Voltage: AC 100-240V~50/60HZ
• Output Voltage: DC 19V 3.42A/4.74A 
• Max. Output Power:   　65W/90W
• Connector Size:  5.5*1.7mm (as pictures)
• Manufacture Guaranty: 12 Months
• Operate Environment: Please keep the environment cool and dry!

Charger for Acer  Aspire 5742G 20V 4.5A 90W 

The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger is a high-performance replacement power adapter designed to deliver stable and reliable power to the Acer Aspire 5742G notebook. With an output of 20 volts at 4.5 amps and a total power of 90 watts, this charger supports consistent energy delivery for everyday computing, professional use, and extended laptop operation. The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Price in Kenya is KSh 2,500, making it a cost-effective and trustworthy power solution.

Who Should Buy This Charger?
This charger is ideal for Acer Aspire 5742G owners who need a compatible replacement or spare unit that matches the original specifications, ensuring safe and efficient power delivery for daily use, multitasking, and demanding workloads.

Price Table – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Price in Kenya

Key Specifications Table – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger

Design and Build Quality – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger

The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger features a compact and robust design optimized for daily use. The outer shell is made from reinforced ABS plastic that resists heat and impact, providing long-lasting performance without deformation. Functional vents help dissipate heat and maintain stable performance under continuous use.

The charger’s round barrel connector is precision-molded for a secure fit into the laptop’s power socket, minimizing loose connections and ensuring reliable power transfer. The cable is both thick and flexible, designed to withstand bending stress without internal breakage. Reinforced strain relief at both ends of the cable adds extra protection where it is most needed, reducing the likelihood of fraying over time.

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Charging Speed and Efficiency

The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger is engineered to deliver stable and efficient charging:

• Provides the full rated output of 90W for consistent laptop performance

• Maintains stable voltage and current without power fluctuations

• Supports simultaneous power delivery while the laptop is in use

• Helps preserve battery health with regulated energy transfer

• Reduces energy losses with high conversion efficiency circuitry

• Performs reliably under daily workloads such as browsing, editing, and streaming

This efficient power delivery system ensures dependable charging performance that aligns with the laptop’s original specifications.

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Safety Protection Technologies

Safety is a core priority in the design of the Acer Aspire 5742G 20V 4.5A 90W Laptop Charger. It includes multiple automatic protection systems:

• Overvoltage protection prevents damage from excessive voltage surges

• Overcurrent protection limits current to safe levels

• Short-circuit protection safeguards against electrical faults

• Thermal protection reduces heat buildup and overheating risk

• Insulated internal components improve overall safety and prevent electric shock

These protections help ensure both the laptop and the charger operate within safe electrical thresholds even in unstable power conditions.

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Connectivity and Compatibility

The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger offers dependable connectivity features:

• A precision-fit round barrel connector compatible with the Acer Aspire 5742G power port

• Works with laptops that require 20V 4.5A and 90W power specifications

• Supports secure power delivery even during extended usage

• Works seamlessly with the laptop’s internal power management system

This charger is engineered with compatibility in mind, ensuring it performs as intended with devices built to the same electrical requirements.

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Cable Strength and Durability

Cable quality is essential for long-lasting performance. The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger cable delivers reliability through:

• Thick, flexible construction that resists daily wear and tear

• Reinforced connector ends to prevent internal cable failure

• Abrasion-resistant insulation that protects internal wires

• Sufficient cable length for flexible setup across desks and outlets

These features reduce the risk of damage from frequent bending and plugging, contributing to the charger’s lasting performance.

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Energy Management and Heat Control

Efficient management of energy and heat is essential for both performance and safety:

• High-efficiency circuitry reduces heat generation during use

• Heat dissipation features ensure stable performance during extended charging periods

• Balanced energy distribution minimizes thermal stress

• Maintains steady power output even with continuous or high-demand usage

These characteristics make the charger a safer and more reliable power solution for daily laptop use.

Ideal Use Cases – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger

The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger is suited for a broad range of real-world scenarios:

1. Home Computing: Smooth charging for browsing, media, and productivity.

2. Office Work: Stable power for business applications and multitasking.

3. Travel and Remote Work: Compact and lightweight for charging on the go.

4. Backup Charger: Functional spare for emergencies or secondary setups.

5. Student Use: Reliable support for study, research, and assignments.

6. Everyday Productivity: Handles normal workloads without interruption.

7. Multitasking Environments: Supports simultaneous use and charging.

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Smart Features

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Intelligent Power Delivery

• Automatic voltage stabilization ensures consistent output

• Minimizes unnecessary draw to protect battery health

• Balances energy delivery for efficient operation

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Overvoltage and Short Circuit Protection

• Protects against voltage surges and electrical faults

• Reduces risk of damage in unstable power environments

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Universal Compatibility Features

• Designed for laptops with matching 20V 4.5A requirements

• Ensures seamless power delivery with compatible devices

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Fast-Charging Support

• Efficient charging performance at rated 90W

• Keeps operating temperatures stable during charging

Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Energy Efficiency and Performance Modes

• Supports optimized power usage

• Maintains consistent performance across different workloads

Pros and Cons Table – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger

Frequently Asked Questions – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Price in Kenya

What is the Acer Aspire 5742G 20V 4.5A 90W Laptop Charger price in Kenya?
The price is KSh 2,500 in Kenya.

Is the charger safe for daily use?
Yes — it includes overvoltage, overcurrent, short-circuit, and thermal protections.

Can it be used while the laptop is under load?
Yes — it supports charging while powering normal application loads.

Is this an original Acer charger?
This is a high-quality compatible replacement, not necessarily a branded OEM unit.

How long is the charger cable?
The cable is approximately 1.2–1.5 meters long.

Will this charger damage the battery?
No — it provides regulated power designed to protect battery health.

Is this charger fast-charging compatible?
It supports efficient 90W charging, but does not follow modern fast-charge USB-C protocols.

Is this charger compatible with other Acer models?
It is compatible with other Acer laptops requiring the same voltage, current, and connector specs.

Conclusion – Acer Aspire 5742G 20V 4.5A 90W Laptop Charger Price in Kenya

The Acer Aspire 5742G 20V 4.5A 90W Laptop Charger delivers reliable, efficient, and safe power to the Acer Aspire 5742G notebook. With stable output, advanced safety protections, and durable build quality — all at a competitive price in Kenya of KSh 2,500 — this charger represents excellent value for students, professionals, and everyday users alike. Its robust design and dependable performance make it a practical choice for anyone seeking a trustworthy replacement or spare power adapter for regular laptop use.