Tablet Power Consumption: Everything You Need To Know!

Tablets have become a ubiquitous part of our daily lives, with their portability and versatility making them a popular choice for both personal and professional use. However, as with any electronic device, tablet power consumption is a crucial factor to consider when choosing a tablet, as it can affect both the device’s performance and its battery life.

In this article, we’ll dive into the world of tablet power consumption, discussing the factors that affect it and ways to optimize it for maximum efficiency.

What is Tablet Power Consumption?

Tablet power consumption refers to the amount of electrical power a tablet device requires to operate. Every electronic device, including tablets, relies on a battery to provide the necessary power to function. The amount of power a tablet consumes depends on several factors, including its hardware components, operating system, and usage patterns.

Tablet Power Consumption Calculator

Energy usage calculator

Watts :
Uses Time (H/Day) :
Cost per unit :

kWh Per Day:

Cost Per Hour:

Cost Per Day:

Cost Per Month:

Cost Per Year:

Tablet Power Consumption Formula:

Tablet Power Consumption (kWh) = Average Wattage (W) x Average Hours of Usage (h) / 1000

Electricity Usage Details for Tablet:

Let’s take a closer look at the electricity usage details for tablets:

  • A typical tablet consumes 5-10 watts per hour (Wh).
  • If a tablet is used for four hours per day, its average daily power consumption would be 20-40 Wh.
  • If the average cost per unit is $0.12 per kWh, the tablet’s daily electricity usage cost would be around $0.01-$0.05 per day.

Electricity Usage of Tablets

To understand the electricity usage of tablets, we need to consider the following terms and definitions:

Average Wattage:

The average wattage refers to the amount of power the tablet consumes in watts per hour (Wh). This varies depending on the tablet’s model, screen size, processor, and other factors. Typically, tablets consume an average of 5-10 watts per hour.

Average Cost per Unit:

The average cost per unit refers to the cost of electricity per kilowatt-hour (kWh) in your location. This varies depending on the electricity provider and can range from a few cents to several dollars per kWh.

Average Units per Day:

The average units per day refer to the number of kWh the tablet consumes per day. This can be calculated by multiplying the tablet’s average wattage by the number of hours it’s in use per day and dividing the result by 1000 (to convert watts to kWh).

Average Hours of Usage:

The average hours of usage refer to the number of hours the tablet is in use per day. This varies depending on the user’s habits and can range from a few minutes to several hours per day.

Using these parameters, we can calculate the tablet’s power consumption and estimate its electricity usage cost.

Factors that Affect Tablet Power Consumption

Several factors can affect a tablet’s power consumption, including:

Screen Size:

The larger the screen size, the more power the tablet consumes. High-resolution displays also consume more power than lower-resolution ones.


The processor’s speed and efficiency play a significant role in power consumption. High-performance processors consume more power than low-power ones.


Using cellular data or Wi-Fi to access the internet can significantly affect power consumption. Wi-Fi consumes less power than cellular data, so whenever possible, connect to Wi-Fi to optimize power consumption.


Tablet features like GPS, Bluetooth, and NFC also consume power. Turning off these features when not in use can help conserve power.

Factors That Affect Tablet Power Consumption

Understanding the factors that affect tablet power consumption is crucial for optimizing its efficiency. Here are some of the main factors that impact tablet power consumption:

Screen Brightness

The display screen is one of the most power-hungry components of a tablet device. The brighter the screen, the more power it consumes. By lowering the screen brightness, you can significantly reduce the amount of power your tablet uses.

Processor Speed

The processor is another critical component that affects tablet power consumption. A faster processor consumes more power than a slower one. However, modern processors are designed to balance power consumption and performance, so you can still get optimal performance without sacrificing battery life.

Network Connectivity

Using cellular data or Wi-Fi to connect to the internet also affects tablet power consumption. Cellular data uses more power than Wi-Fi, so it’s advisable to use Wi-Fi whenever possible to reduce power consumption.

Operating System

The operating system (OS) of a tablet device can also impact its power consumption. Some OSs are more power-efficient than others, and choosing a tablet with an optimized OS can significantly improve battery life.

Battery Capacity

The battery capacity of a tablet device is also a crucial factor to consider. A higher-capacity battery can provide longer battery life, while a lower-capacity battery may require more frequent charging.

Energy-Saving Tips and Tricks for Tablet

To reduce power consumption and optimize the tablet’s performance, here are some energy-saving tips and tricks:

Reduce Screen Brightness

Reducing the screen brightness can significantly reduce power consumption. Set the screen brightness to the lowest comfortable level.

Close Unused Apps

Closing unused apps can also reduce power consumption. Many apps continue to run in the background, consuming power even when not in use.

Enable Power-Saving Mode

Most tablets have a power-saving mode that reduces power consumption by limiting the device’s performance. Enabling this mode can significantly extend the tablet’s battery life.

Turn Off Unnecessary Features

Turning off unnecessary features like Bluetooth, GPS, and NFC can help conserve power. These features can be turned off when not in use and enabled when needed.

Update Apps and System

Updating the tablet’s apps and system can improve performance and optimize power consumption. Newer versions often come with bug fixes and performance improvements that can reduce power consumption.

Use a Battery-Saving App

Using a battery-saving app can help monitor and optimize the tablet’s power consumption. These apps can help identify power-hungry apps and features and recommend ways to reduce power consumption.

Charge the Tablet Smartly

Charging the tablet smartly can help optimize its battery life. Avoid overcharging or undercharging the battery and use a charger with the correct voltage and amperage.

Frequently Asked Questions (FAQs)

How can I reduce the power consumption of my tablet?

You can reduce power consumption by reducing screen brightness, closing unused apps, enabling power-saving mode, turning off unnecessary features, updating apps and systems, and using a battery-saving app.

Can using Wi-Fi instead of cellular data save power?

Yes, using Wi-Fi instead of cellular data can significantly reduce power consumption.

How does the screen size affect power consumption?

The larger the screen size, the more power the tablet consumes. High-resolution displays also consume more power than lower-resolution ones.

Can using a battery-saving app harm my tablet?

No, using a battery-saving app can help optimize power consumption and extend the tablet’s battery life without harming it.

How do I know if an app is consuming too much power?

Most tablet devices have a built-in power usage monitoring feature that displays which apps are consuming the most power. You can use this feature to identify power-hungry apps and close them to optimize power consumption.

Can I replace the tablet battery to improve its performance?

Some tablet devices have replaceable batteries, while others don’t. Even for devices with replaceable batteries, replacing the battery may not necessarily improve its performance. It’s best to consult the manufacturer’s recommendations before replacing the battery.

Does charging a tablet device overnight damage the battery?

No, most modern tablet devices have built-in mechanisms that prevent overcharging and battery damage. However, it’s still advisable to unplug the device once it’s fully charged to optimize battery life.


Tablet power consumption is a crucial factor to consider when choosing a tablet device. Understanding the electricity usage of tablets and optimizing their power consumption is crucial for conserving energy and extending their battery life. By following the energy-saving tips and tricks outlined in this article and keeping in mind the factors that affect power consumption, you can reduce your tablet’s electricity usage and save money on your electricity bill.

2 thoughts on “Tablet Power Consumption: Everything You Need To Know!”

    • The cost of electricity varies worldwide. Comparing the mentioned prices, it appears that Australia’s peak rate (55c/kWh) is approximately 4.5 times higher than the 12c/kWh rate. Similarly, the off-peak rates in Australia (37-40c/kWh) are about 3 to 3.3 times more expensive.


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