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

The Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger is a reliable replacement power adapter designed for the Acer Aspire 5742Z laptop. With a rated output of 20 volts at 4.5 amps and 90 watts of continuous power delivery, this charger supports stable and efficient charging for daily laptop use, whether for study, work, or entertainment. The Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger Price in Kenya is KSh 2,500, offering an affordable and dependable power solution.

Who Should Buy This Charger?
This replacement charger is perfect for users of the Acer Aspire 5742Z who require a compatible adapter that matches their laptop’s original specifications, ensuring safe and consistent performance.

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

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

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

The Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger features a compact and robust design made for everyday use. The outer casing consists of reinforced ABS plastic, designed to resist heat, scratches, and impact. This material also helps maintain structural stability for prolonged use across varied environments such as home, office, or travel.

The charger’s round barrel connector is precisely molded for a firm and secure connection with the laptop’s power port, reducing the risk of connection issues. The cable is engineered with reinforced strain relief at both ends, minimizing internal wire damage from bending or frequent plugging and unplugging.

The cable length of approximately 1.2–1.5 meters allows for flexible placement of your laptop relative to power outlets, increasing convenience for users working at a desk or in a lounge setting.

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

The Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger delivers stable and efficient charging performance tailored to the laptop’s specifications:

• Provides the full 90 Watts of power for consistent charging

• Maintains stable voltage and current output

• Reduces power fluctuations during simultaneous usage and charging

• Supports regulated energy supply to help protect battery lifespan

• High conversion efficiency minimizes wasted energy

• Performs reliably under standard computing loads like office tasks, browsing, and media playback

This stable delivery contributes to predictable performance and helps ensure efficient laptop operation during everyday tasks.

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

Safety is an essential feature of the Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger, which integrates multiple protective systems:

• Overvoltage protection prevents excess voltage from damaging sensitive laptop components

• Overcurrent protection limits the current to safe levels

• Short-circuit protection reduces electrical fault risk

• Thermal protection controls heat buildup

• Insulated internal components enhance electrical safety and user protection

These safety features ensure the charger operates within safe limits, even in environments with unstable power supply.

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

This charger is engineered for dependable connectivity and compatibility with the Acer Aspire 5742Z:

• Precision-engineered round barrel connector suited for Acer laptops

• Works with devices requiring 20V 4.5A 90W input

• Secure fit prevents accidental disconnection

• Compatible with the laptop’s built-in power management system

Its compatibility extends to other Acer models with similar power requirements and connector specifications.

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

The cable design of the Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger emphasizes durability and daily reliability:

• Thick and flexible cable resists repeated bending

• Reinforced strain relief reduces internal wire stress

• Abrasion-resistant insulation protects against external wear

• Adequate length for flexible working arrangements

These qualities contribute to a long lifespan even with frequent use and travel.

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

Efficient energy management and heat control improve both performance and safety:

• High-efficiency conversion reduces heat production

• Balanced power distribution stabilizes electrical output

• External casing design assists with heat dissipation

• Stable performance during extended charging periods

These features ensure the charger remains cool and reliable, minimizing the risk of thermal stress over time.

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

The Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger is ideal for a range of scenarios:

1. Home Computing – Powering everyday tasks like web browsing, media playback, and emails.

2. Office Productivity – Stable power for documents, spreadsheets, meetings, and presentations.

3. Travel and Remote Work – Compact and portable for charging on the go.

4. Backup Charger – A spare charger for workstations or secondary locations.

5. Student Use – Reliable charging for study sessions, assignments, and online learning.

6. Multitasking Environments – Handles simultaneous use while charging.

7. Professional Tasks – Supports routine workloads efficiently and steadily.

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

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

• Automatically stabilizes power output

• Minimizes unnecessary power draw

• Helps maintain battery health through regulated delivery

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

• Protects against electrical faults

• Reduces risk in unstable power conditions

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

• Designed for laptops with matching voltage and current needs

• Works seamlessly with compatible devices

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

• Efficient charging performance at rated 90W

• Maintains safe operating temperature

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

• Supports optimized energy distribution

• Ensures consistent performance under varied workloads

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

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

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

Is this charger compatible with other laptops?
It works with other Acer laptops that require 20V 4.5A 90W and have the same connector.

Does this charger include safety protections?
Yes — it includes overvoltage, overcurrent, short-circuit, and thermal protections.

Can I use the charger while the laptop is in use?
Yes — it supports simultaneous charging and use during typical workloads.

Is this an original Acer OEM charger?
This is a high-quality compatible replacement and may not carry OEM branding.

Will this charger damage my laptop battery?
No — the regulated output helps maintain battery health.

Does this charger support fast charging?
It delivers efficient 90W charging but does not include modern USB-C fast-charging protocols.

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

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

The Acer Aspire 5742Z 20V 4.5A 90W Laptop Charger is a dependable and cost-effective power adapter that delivers consistent performance, safety protections, and long-lasting durability. With a price in Kenya of KSh 2,500, stable 90W output, and comprehensive safety features, this charger caters to students, professionals, and everyday users alike. Its dependable power delivery and robust design make it a strong choice for anyone needing a reliable replacement or spare charger for regular laptop use.