Get your cell phone battery up and running again

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Get your cell phone battery up and running again
Get your cell phone battery up and running again
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This wikiHow teaches you several ways to get your phone's battery working again if it stops working. If your battery is empty, remove it and try to clean the compartment that contains the battery. Also clean the battery itself. Use a clean microfiber cloth for this. If this doesn't work, wrap the entire battery tightly with plastic wrap, then put it in the freezer for a few days. As a last resort, you can use a 9V battery to jumpstart your broken phone battery.

Steps

Method 1 of 4: Cleaning the battery compartment

Revive a Cell Phone Battery Step 1

Step 1. Remove the battery from your phone

You may have to take the back case off to access the battery.

  • If you have an iPhone, check out this article to learn how to remove the battery.
  • For some Samsung Galaxy models, removing the battery works a little differently. Look up information if necessary.
  • For more specific information on removing Android batteries, please refer to the manufacturer's website or user manual.
Revive a Cell Phone Battery Step 2

Step 2. Remove all dust and debris from the battery compartment

This is where you just took the battery out. Use a dry cloth as moisture can damage the phone beyond repair.

Tip:

Use a clean and unused microfibre cloth for this.

Revive a Cell Phone Battery Step 3

Step 3. Also remove all dirt and dust from the battery itself

Again, never use water for this. This prevents damage to the battery.

Revive a Cell Phone Battery Step 4

Step 4. Put the cleaned battery back into the phone

Revive a Cell Phone Battery Step 5

Step 5. Turn on the phone

Cleaning may just breathe new life into the battery and allow you to start using the phone again.

Method 2 of 4: Freezing the battery

Revive a Cell Phone Battery Step 6

Step 1. Remove the battery from your phone

You may have to take the back case off to access the battery.

  • If you have an iPhone, check out this article to learn how to remove the battery.
  • For some Samsung Galaxy models, removing the battery works a little differently. Look up information if necessary.
  • For more specific information on removing Android batteries, please refer to the manufacturer's website or user manual.
Revive a Cell Phone Battery Step 7

Step 2. Wrap the battery in paper or plastic wrap

To fully protect your battery against water or other liquids, pack it completely.

Revive a Cell Phone Battery Step 8

Step 3. Place the battery in a sealed plastic bag

Make sure the battery is fully protected from ice, water and all other wet surfaces in your freezer.

You can be sure that the battery will be damaged if it gets wet. Protect your battery against moisture at all costs

Revive a Cell Phone Battery Step 9

Step 4. Place the sealed battery in the freezer compartment

Revive a Cell Phone Battery Step 10

Step 5. Leave the battery in the freezer for 3 days

If the battery is exposed to low temperatures for a while, it may recharge a little. This way, the battery should hold enough energy to reconnect to a regular phone charger.

Remark:

if you are in a hurry you could try 12 or 24 hours instead of 3 days.

Revive a Cell Phone Battery Step 11

Step 6. Remove the battery from the freezer after 3 days

When you're ready to see if your battery is working, it's time to take it out of the freezer and unpack it again.

Revive a Cell Phone Battery Step 12

Step 7. Remove all moisture from the battery

If there is still moisture on the battery, wipe it off and carefully wipe the battery dry.

Revive a Cell Phone Battery Step 13

Step 8. Store the battery at room temperature for a day

This allows the battery to adapt to normal temperatures.

  • If all this takes too long, wipe off all the moisture, and put the battery back in while it's still cold.
  • Do not expose the battery to direct sunlight. This can cause irreparable damage.
Revive a Cell Phone Battery Step 14

Step 9. Put the battery back in your phone

Do not turn on the phone for now.

Do not switch on your phone until you have charged it with your phone charger

Revive a Cell Phone Battery Step 15

Step 10. Charge your phone with a standard charging cable

You can charge it completely without turning on the phone. Leave the phone in its charger for at least 48 hours before trying to turn the phone back on.

Revive a Cell Phone Battery Step 16

Step 11. Turn on your phone

After the phone has been in the charger for 48 hours, turn it on again. Check the battery level to see if the freezing method worked. It could be that your once-depleted battery has been given a new lease of life, and can even hold a little power.

Method 3 of 4: Jumpstart the battery

Revive a Cell Phone Battery Step 17

Step 1. Gather battery jumpstart supplies

To manually start a dead phone battery, you need the following:

  • A 9-volt battery
  • insulating tape
  • 2 power wires: Preferably use simple, thin power wires. Red (+), and black (-) are preferred.
  • Always be very careful with electricity. If you don't know what you're doing, err on the side of caution. An overheated battery or making incorrect electrical connections can lead to very dangerous situations. So dangerous, in fact, that the battery could explode.
Revive a Cell Phone Battery Step 18

Step 2. Remove the battery from your phone

You usually have to open the back of your phone to remove the battery.

Revive a Cell Phone Battery Step 19

Step 3. Connect one lead to the positive (+) side of the 9-volt battery

The positive side is the smaller hole at the top of the 9-volt battery. Stick the end of one of the power wires on this with insulating tape. The tape ensures a secure connection.

You will find the '+' sign on the positive side of the battery

Revive a Cell Phone Battery Step 20

Step 4. Connect the other lead along with the electrical tape to the negative (-) part of the 9-volt battery

The negative part is the larger hole at the top of the 9V battery. Make sure you attach the second power wire securely to this. Use the insulating tape for this.

You will find the '-' sign on the negative side of the battery

Revive a Cell Phone Battery Step 21

Step 5. Locate the plus (+) and minus (-) terminals of your phone's battery

The plus and minus terminals are usually indicated by the (+) and (-) signs and are marked on the battery.

  • If you are not sure which side of the battery is plus or minus, consult the manufacturer's instructions for use or ask an electrician.
  • Most cell phone batteries have more than two poles. Use the ones furthest apart, or those on the outside. The poles in the middle must not be used.
Revive a Cell Phone Battery Step 22

Step 6. Connect the positive lead to the positive (+) part of your phone's battery

Take the power lead connected to the positive end of the 9V battery and connect the other end of the lead to the positive (+) terminal of your phone's battery.

  • Remember to use two separate wires, or split wires for each of the poles.
  • Do not connect the plus and minus ends of both batteries.
  • Do not connect the opposite polarity, so no plus to minus. This could cause the battery of your mobile phone to short circuit, or even a small explosion.
Revive a Cell Phone Battery Step 23

Step 7. Connect the negative lead to the negative (-) terminal of your phone's battery

Take the negative lead that connects to the negative end of the 9V battery and tape the other end firmly to the negative (-) terminal of your phone battery.

Revive a Cell Phone Battery Step 24

Step 8. Then leave the connection on for 10 to 60 seconds

This should be enough to give the battery a jumpstart that will make it recharge a bit.

Make sure to check the battery every 10 seconds to prevent it from overheating

Remark:

you can remove the power wires as soon as the phone feels a bit warm.

Revive a Cell Phone Battery Step 25

Step 9. Remove the power wires attached to the cell phone battery

When the battery gets a little warm, all power wires can be removed.

Revive a Cell Phone Battery Step 26

Step 10. Put the battery back in the mobile phone

Make sure you put the battery back in the phone correctly.

Revive a Cell Phone Battery Step 27

Step 11. Turn on your phone

After the jump start with a 9V battery check if your phone turns on then check the battery level to see how far the battery is charged.

You can now try to charge your phone with your regular charging cable

Method 4 of 4: Calibrate your battery

Revive a Cell Phone Battery Step 28

Step 1. Completely drain your battery

Use your phone until your battery is completely empty and switches itself off.

Calibrating your phone's battery can be helpful if your phone charges really fast and then drains super fast

Revive a Cell Phone Battery Step 29

Step #2. Try turning your phone back on

After the phone turns itself off, turn it back on. Then you let the phone turn itself off again with the last bit of power left in the battery.

Revive a Cell Phone Battery Step 30

Step 3. Put your phone in the charger

The phone is now charging again.

Do not turn on your phone when it is in the charger

Tip:

if your phone automatically turns back on after a little charge, just turn it off again.

Revive a Cell Phone Battery Step 31

Step #4. Wait for the phone to be fully charged

If you see a battery on the screen, you can see exactly when it has reached 100%. Otherwise, your phone will take between 1 and 6 hours to fully charge.

Revive a Cell Phone Battery Step 32

Step 5. Turn on your phone

When your phone is fully charged, turn it on by pressing the start button.

Revive a Cell Phone Battery Step 33

Step 6. Restart your phone

After the battery is fully charged, you will need to restart the phone to apply all settings again.

Revive a Cell Phone Battery Step 34

Step 7. Remove the phone from the charger

Your phone should now have been recalibrated and you should be able to see some improvements in battery performance and durability.

Warnings

  • Do not leave your phone battery connected to a 9-volt battery for too long. Doing so could cause the battery to explode.
  • Do not try to charge your phone by using a 9-volt battery. Your mobile phone could catch fire or explode. This method should only be used to breathe new life into an empty battery.
  • Do not leave your battery in the freezer for too long. Remember that extreme cold or heat can damage the battery.

Tips

  • If you're having trouble charging your battery, try a different charger first. It is possible that the charging cable is broken and not the battery itself.
  • If you put the battery in the freezer, make sure it is in a sealed plastic bag away from food. This is to prevent contamination so that if there is a spill, the food cannot come into contact with it.
  • If you are using the freezer compartment method, make sure the bag containing the battery is properly labeled. This is to prevent other people from mistaking it for food.

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