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How to Replace a Mobile Phone Battery


With mobile phones being so ubiquitous and constantly in use, replacing parts to keep yourself connected becomes commonplace.

If you have not already experienced, or are currently experiencing a dying battery, you are or will be in the market for replacing your mobile phone's battery. There are many cellphone carriers and manufacturers, but the concept of replacing a mobile phone's battery is pretty consistent across the board. So regardless of what phone you may have, these steps will more than likely prove very useful for you on how to replace your cellphone battery.

For this tutorial I will be using pictures that show four different phones undergoing the removal of their battery. This is to illustrate the similarities, as well as the small differences between the phones.

The four phones used and how they are displayed in the pictures below:

LG Rumor Touch (upper left), LG CU500 (upper right), Kyocera Adreno S2400 (bottom left), and the Kyocera Loft (bottom right).

First things first, buy a new mobile phone battery

The first thing you need to do after determining you need a new mobile phone battery is to purchase one. There are several solutions to this.

  • Take the phone to your carrier to get a replacement
  • Use your user manual to contact the manufacturer or go to their website to order direct
  • Search online for replacement (e.g. look up replacement battery for LG Rumor Touch)
  • If nothing is coming up or there are multiple batteries on a search, follow the steps below to access your battery and use the serial number to search specifically for what you need.

Typically you can find better deals searching the internet, but be wary, a cheap knockoff battery could result in you replacing your battery sooner. It is always best to replace electronic batteries with the manufacturers battery.

Step 1: Powering down your mobile phone

First and foremost is to shut off your mobile phone. Each phone will have a feature for shutting down, such as a dedicated power button, or holding the hang up button. Whatever it may be, shut down your phone before opening it up.

Why should you power down your phone? This repercussions are debatable and will vary from phone to phone. However, this is just a cautious maneuver as some people have reported loss of data and problems with their settings. Then again, taking your battery out while the phone is live is also what is termed a soft reset, and is advised for problems that arise, like a frozen screen. I would play it safe and power down.

Step 2: Removing your cellphone battery cover

The next step is to turn your phone over and locate either a small arrow, or a tab that can be pressed to release the back casing of the phone. Some phones may not have any indication of how to open. These types of phones may have screws holding the back plate in place (such is the case for some Nokia phones), or you may simply need to press down and slide the back plating.

The best course of action if you are unsure is to consult your phone's user manual or visit the manufacturer's website.

You may find your user manual by searching for your phone here: Cellphone manuals

Step 3: Removing the battery from your cellphone

Now that the case is off we have access to the battery. In the case of the LG CU500, the back panel IS the battery, so two steps in one! What a deal!

For the rest of the phones I am using in the demonstration, I am looking for a small groove or notch that creates space between the battery and the frame of the phone. This small space will allow me to use my fingernail, or a small object, to pry the battery out.

This method will alleviate the need to slap the phone in the palm of your hand in hopes of the battery popping out, which for me typically ends with the battery flying out of my hands and onto the floor.

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LG Rumor Touch battery terminal is located in the back of the phone. The terminals are where the battery connects to the phone to provide the power.

LG Rumor Touch battery terminal is located in the back of the phone. The terminals are where the battery connects to the phone to provide the power.

Step 4 (Optional): Cleaning cellphone battery terminals

This step is optional, depending on the condition of your battery terminals.

Sometimes the battery terminals will appear dirty or corroded. If this is the case, get a cotton swab (a Q-tip works best) and some rubbing alcohol. Wet the cotton swab with the rubbing alcohol and wipe the terminals clean. This will ensure good contact and prolong your battery's life.

You can also do this as preventative maintenance, cleaning the terminals periodically on both the battery and the connecting terminals on the inside of the phone.

Recycle your mobile phone battery!

Don't just toss your mobile phone's battery in the rubbish! Check to see how to recycle batteries in your area, or you can go online and find programs like this:

Step 5: Replace the battery on your cellphone

This step is pretty much reversing everything you just completed. You should already have your cellphone's new battery, or at least now have a serial number you can obtain from the existing battery to help you order the correct part. Once you have the battery in your possession, follow these steps in reverse order to get you to the point of using your cellphone again.

Step 6: Charging a new cellphone battery

You have the battery in and everything is back in place, you fire up your phone and we have power! Though you may have minimal battery life, you do have power.

Do not go rushing to plug in your phone. Instead, check your user manual to see what the manufacturer suggests.

Some say allow the new battery to completely die and then charge it. Do this again a few more times before you start charging with the battery not all the way drained. Doing this may prolong the life of your battery and give you and your phone a longer lasting relationship.


Jared Zane Kessie (author) from Richland, Washington on March 27, 2012:

For li-ion batteries I wouldn't do it beyond the first time or two. After that make sure to charge when it needs it, as the lithium ion batteries may have problems if you continually run the battery out.

As for nickel based batteries, it is the opposite and letting them drain may help in prolonging the life.

So first, make sure you know what type of battery you have. Second, you can always check your user manual to see what they suggest. If nothing comes up, I would discharge at least once before fully charging, as it will not harm but could possibly extend your batteries overall lifespan. However, discharging a lithium ion battery completely over and over will shorten its lifespan, so make sure to keep the li-ion batteries charged.

Newer models tend to be using the lithium ion batteries, so this may be what you are referring to.

Also, I have had a phone suggest completely charging before use, hence why checking the phone's user manual is important.

Robin Edmondson from San Francisco on March 27, 2012:

This is so useful, Jared. Luckily, I have never had to replace a battery on my phone, but if I do, I know where to look for instructions!

Rachel Vega from Massachusetts on March 27, 2012:

Thanks! But I've heard conflicting things about letting the battery run down -- some say do it, some say don't, especially with newer models. Who should I listen to?

Teresa Coppens from Ontario, Canada on March 25, 2012:

Useful information. Great idea to clean the terminals with rubbing alcohol. Great job!

Cynthia Calhoun from Western NC on March 23, 2012:

This is useful for sure. I didn't know that you should use the new battery without charging it until it actually dies and needs to be re-charged. I also bite my nails; I can never get my fingers in those little holes to get the batteries out. :) Great hub, voted up and useful!

Michael S from Danville, VA on March 23, 2012:

A very useful tutorial, especially for the non-tech savvy individual.

Alissa Roberts from Normandy, TN on March 23, 2012:

These are great step by step directions to changing a cell phone battery. I have never thought of cleaning the terminals with alcohol and Q-tip. Good tip to know - thanks!

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