# How Many Watts in a Cell Phone Battery? (Phone Charger Wattage Calculator)

Published on: October 18, 2022

Written by Nolan Miles / Fact-checked by Porimol Sorkar

A watt is a unit of power and one watt equals one joule per second. A cell phone battery can store anywhere ranging from 3 to 6 watts or 3 to 6 joules of energy per second.

The average cell phone battery has a capacity of around 2,000mAh, which means it can store around two million joules of energy. Phone battery may drain if you don’t use it properly.

Most cell phone batteries have a capacity of around 3,000 to 5,000 mAh. This means that they have higher mAh and can store enough power to provide around 3 to 5 watts for an hour. So, if you use your cell phone for an hour each day, the battery will need to be recharged every three to five days.

## Smartphone Power Consumption Watts

We all know that our smartphones are powerful little devices. But did you know that they also consume a lot of power? In fact, the average smartphone uses about 2 watts of power when in use.

That may not sound like much, but it can add up over time! If you’re curious about how your smartphone stacks up in terms of power consumption, there are a few ways to find out.

First, check your phone’s battery life | If it doesn’t last as long as you’d like, it’s probably using more power than necessary. |

Second, take a look at your phone’s settings | And see if there are any options to reduce its power consumption. |

Finally, consult an online resource | That can tell you how much power your specific model of smartphone uses. |

No matter how you slice it, our smartphones are little energy hogs. But we love them anyway!

## How Many Watts Does a Phone Charger Use Per Hour?

We all know that our phones need to be charged on a regular basis, but how much power does a phone charger actually use? According to Energy Star, the average phone charger uses about 5 watts of power per hour. That means that over the course of a day, your charger is using about 120 watt-hours, or 0.12 kilowatt-hours (kWh).

While that may not seem like much, it can add up over time. If you leave your charger plugged in 24/7, you could be using nearly 3 kWh of electricity per month just to charge your phone. That’s the equivalent of running a 60-watt light bulb for 50 hours!

Fortunately, there are some easy ways to reduce the amount of power your phone charger uses. One is to unplug it when you’re not using it – only plug it in when you need to charge your phone. Another is to use a “smart” charger that only draws power when needed (most newer chargers have this feature).

Finally, you can buy an “energy efficient” charger that meets strict energy efficiency standards set by the U.S. Department of Energy. These chargers can save you even more money on your electric bill – up to $30 per year!

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## How Much Electricity Does a Phone Charger Use?

According to a recent study, the average phone charger uses about 2.24 watts of electricity when it’s plugged in and not charging a device. That may not sound like much, but it adds up over time. In fact, if you leave your charger plugged in for 24 hours a day, 365 days a year, it will add up to nearly 10 kWh of electricity usage per year!

Now, let’s take a look at how much that 10 kWh of electricity costs. The national average price of electricity is $0.12 per kWh, so 10 kWh of electricity would cost you about $1.20 per year to keep your phone charger plugged in all the time. And since most people have multiple devices that need to be charged (phones, tablets, laptops, etc.), that number can quickly add up!

So what can you do to save money on your phone charger usage?

**First,** unplug it when you’re not using it – even if it’s just for an hour or two each day.

**Second,** invest in a power strip so you can easily plug/unplug all of your devices at once. **And lastly,** consider investing in a solar-powered charger – they’re great for camping trips or other times when you don’t have access to traditional power sources!

## Phone Charger Wattage Calculator

If you’ve ever wondered how much power your phone charger is actually using, or how to calculate the wattage of a charger, there’s now a tool for that. The Phone Charger Wattage Calculator lets you input the voltage and amperage of your charger and gives you an estimate of the wattage.
This can be useful when trying to determine if your charger is powerful enough to charge your device in a timely manner.

For example, if you have a phone that requires 5 volts and 2 amps to charge, and you’re using a charger that only provides 1 amp, it will take twice as long to charge your phone. Conversely, if you’re using a charger with 3 amps, it will charge your phone 50% faster than usual.
The calculator also includes estimates for common phones on the market, so you can compare how fast different chargers would charge your specific device.

Overall, this tool can be helpful in understanding how charging works and what kind of difference using different chargers can make.

## How Many Watts Does an iPhone Use?

How many watts does an iPhone use? This is a question that gets asked a lot, and there’s no easy answer. It all depends on how you use your iPhone.

If you are constantly using apps, streaming video, or playing games, your iPhone will use more battery power and therefore require more watts to charge. If you mostly use your iPhone for texting, making calls, and checking email, it will use less power and not need as many watts to charge.
The bottom line is that the number of watts your iPhone uses to charge will vary depending on how you use it.

So if you want to know exactly how many watts your iPhone uses, the best way to find out is to track your usage over time and see how much power it requires to keep up with your needs.

## How Much Does It Cost to Charge an iPhone for a Year?

Assuming you are talking about the cost of electricity to charge an iPhone for a year, it would depend on the wattage of your charger, the amperage and voltage of your battery, and how much you use your phone. Based on some rough calculations, if you have a standard 5-watt charger and use your phone for an hour each day, it would cost you about 36 cents per year to charge your iPhone.

## How Many Watts to Charge a Laptop?

How Many Watts to Charge a Laptop
Most laptops require between 60 and 120 watts to charge. The majority of laptop computers on the market today require between 60 and 65 watts to charge; however, some larger laptops or those with high-end graphics cards may require up to 120 watts.

You can find the specific wattage required by your laptop by checking the specifications in your owner’s manual or on the manufacturer’s website. When using a public charging station, it is important to check that the station can provide enough power for your particular laptop model.

## How Many Watts Does a Cell Phone Transmit?

A cell phone transmits at a frequency of about 850-1900 MHz, with most of the energy concentrated in the middle of that range. The power output of a typical cell phone is about 0.6 watts (600 mW). That’s not much power, but it’s enough to cause interference with some sensitive electronic equipment.

It’s also enough to heat up your head and body if you use the phone a lot.

## Quick Facts

### How Many Watts is a Typical Cell Phone?

Most cell phones have a battery capacity between 1000 and 3000 mAh. This means that a typical cell phone will have a power output of between 3.7 and 11 watts.

### How Many Watts is an Android Phone?

An Android phone typically uses about 2 watts when in use. This can vary depending on the specific phone and usage but is generally in the ballpark of 2 watts.

### How Many KW is a Phone Battery?

A phone battery typically ranges from 1,000 to 3,000 mAh, which is about 3 to 10 watt-hours. This means that a phone battery can store between 3 and 10 kilowatt-hours of energy.

### How Many Watts Does an iPhone Use?

A recent study conducted by Battery University has revealed that the average iPhone uses around 12.5 watts of power. This means that if you were to use your iPhone for an hour each day, it would cost you approximately 30 cents per day in electricity bills. However, this number can vary depending on how often you use your phone and what type of tasks you perform on it.

For example, if you frequently use apps that require a lot of processing power or if you regularly stream videos and music, your iPhone will likely use more than 12.5 watts of power.

## Conclusion

Most cell phone batteries have a capacity of around 2,000 mAh. This means that they can provide 2 amps for one hour, or 1 amp for two hours. The wattage rating of a battery is simply the voltage multiplied by the amperage.

Therefore, most cell phone batteries have a wattage rating of around 6-8 watts.