How much power does my phone consume?

Did you ever think how much power does your cell phone consume? Yes, we know it will be negligible but once the number of consumers has grown to a very high number all around the world, the power being consumed as a whole may be significant?

Let’s do some simple maths and we are not getting into any fancy tools here. It’s simple arithmetic. You will need to find three numbers about your phone before you start this calculation. The numbers are:

  1. The battery capacity in mAh (milli-Ampere-hour)
  2. The voltage output of the battery ( volts )
  3. Total Talk time
  4. Total Standby Time (optional) Continue reading “How much power does my phone consume?”

Fring alternative for VOIP calls

NimbuzzSkype is down on Fring and its not a good news. The way things are going, I don’t see it coming back to Fring at all, at least not in a few years to come. What do I do? If you are one of those lucky ones who have a phone that supports the native Skype client, stop reading here 🙂

If you were using Fring because you have no Skype option on your phone model, you have to look around for an alternative now. Nimubzz is the only alternative now that gives free voice Skype to Nimbuzz calls so that you can use your cellphone to make and receive Skype calls. I used Nimbuzz a couple of years ago and it was not impressive at all. When I installed it again today, it has grown up to be a stable application with several other cool features including voice calls to and from skype. The only issue I can see is the lack of video call capability (may be it’s my phone?).

Go ahead and install the app from and don’t you forget to leave a comment below saying thanks if it works out for you 😉

Green Computing Note

User your phone for voice and video chat instead of your computers. Phones take less power hence more environment friendly.

Mobile Phones are better than Computers – Green Computing

Mobile Phone Power Consumption
Mobile Phones consume very low power

What do you use your computer for? Surfing Internet, chat, gaming, social networking, downloading, desktop computing including documents, spreadsheets or presentation making or just watching your photos and videos? Today’s mobile phones are capable of doing it all, rather sometimes more than the traditional phones. They have faster processors, more ram, faster  wireless Internet connectivity and larger memories.

Today I will start another series of posts that will tell you how to use your phones to do things that you usually do with your computers including desktops, laptops and netbooks. This series of posts will include tips, tricks and software that you can use to avoid the use of computers and just use your phone 🙂

Why are mobile phones better?

If you have not done so, you can read my earlier articles that prove that laptops are better than desktops, because they take around 60 watts of power as compared to a few hundred watts. Then we also discussed that netbooks are even better than laptops taking half the power as compared to a full sized notebook. Today we will move one step ahead.

To prove my point I used this app called Nokia Energy Profiler. The app is a free download available on Nokia OVI store for almost all Nokia devices. The application gives you exact numbers in terms of power consumption, network bandwidth utilization and a few more important things that you never come to know when using a  mobile phone. Just like any other computing device, Nokia phones consume low power when idle and take more power when performing more computation.

Here are a few screen-shots. As you can see, when the phone is idle, it takes 0.18 watts on average. When navigating the menu and viewing simple content like photos on the phone screen, its consuming 0.23 watts on average. In the third screenshot, the phone is being used for a voice+video call over a wifi network and the battery usage is at it’s top, that is around 2 watts.

Idle State
Phone Menu Use
Skype Video Call - High Power Consumption
Sudden Spike when receiving call

In the last screen shot you can see the sudden rise in battery consumption when there’s an incoming call ringing and picked up.

In any case, this particular cellphone is using less than 2 watts of power which is way less than the other computing devices we listed above.


Use mobile phones for your computing needs whenever and wherever possible. You’ll save power and will contribute your efforts in keeping this planet green. Happy Green Computing!

Netbooks are better than Notebooks – Green Computing

We have been discussing the green-computing advantage of Laptops over the Desktop computers when it comes to power consumption. Today we’ll take the discussion one step further in our green-computing section.

All of us have heard about net-books, the miniature versions of the laptops/notebook PCs. Capabilities of the Netbooks are good enough for normal use, desktop computing and web-surfing etc. The advantage they give you is the size, handling and power consumption.

We discussed the power consumption advantage of Laptops over Desktops in a previous post. We discussed that Laptops typically take around 60 to 65 watts of power during normal operation. An average Netbook running on Intel Atom processor consumes around 30 to 35 watts of power during normal use. This is actually around half of the power consumption of Notebooks and Laptops.

So if you are not a power user and desktop processing, chatting, Internet surfing is all what you have to do on your PC, prefer a Netbook instead of a Notebook.

I know a number of Netbook haters out there not because of their capabilities in terms of specifications but due to their small size, very small screen and no optical drive. You can purchase a few components and make a good desktop docking station for your Netbook to overcome these issues. For example, you can buy a larger LCD screen, a USB Keyboard, Mouse and a USB external optical drive. While you are on the go, you live with the small components and when you are back home, you can enjoy a full fledged computing experience right out of your netbook with a lower power consumption.

Green Computing Bottom Line

Don’t use desktop computers at all. Use either laptops, notebooks or netbooks for a green-computing advantage. You should prefer a netbook over the notebooks and laptops as well as they consume the lowest power of them all.

Monitor Power Consumption – CRT vs LCD

This is a known fact that CRT monitors take more  power as compared to the LCDs.

If you have a CRT monitor, the big monitor with the bloated tail and a few KGs weight, you are consuming the most power. The power consumption of a CRT monitor ranges from 100watts to 300 watts depending on the size, model and make of the monitor. Typically, the older models used to consume more power and newer ones are better in terms of power consumption.

If you have a flatter variant of a screen that could be a TFT, LCD, LED or Plasma screen, you are using less power as compared to the CRT monitors. Most of the laptops, hand held devices like pdas and mobile phones are using this kind of displays these days. If you are using LCD, TFT or LED monitor for your computer as external display, your typical power consumption is somewhere between 50 watts to 200 watts depending on the size. For example this 15” LCD I have consumes 55 watts. There can be screens that take even less power.

This worksheet provides a more quantitative way of calculating your poswer consumption depending on different monitors you are using.

See more articles on Green Computing at home and office.