Difficulty

Moderate

Steps

21

Time Required

                          10 minutes - 2 hours

Sections

1

  • Battery
  • 21 steps

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Introduction

In this guide, a swollen Li-ion battery is replaced with a new one as a demonstration.

Replacing the old or damaged Li-ion battery is not only improves the performance of the laptop, but also keeps the battery in a healthy state for safety, avoiding the risk of thermal runaway.

  • Step 1: Check the appearance of the laptop before replacementStep 2: Check the status of the battery before replacement (optional)Step 3~11: Teardown the laptop until the Li-ion battery appearsStep 12~13: Remove the old or damaged Li-ion batteryStep 14~15: Replace the old double-sided tapes (optional)Step 16: Install new Li-ion batteryStep 17~18: Stick back the plastic sheet and double-sided tapeStep 19: Spacing fixing (optional)Step 20: Check the laptop after replacing the batteryStep 21: Check the status of the battery after replacement (optional)

  • There is a “destructive” teardown that cannot be restored to its original state in step 9.Steps 2 and 21 can be skipped when users don’t want to know the status of the battery or don’t have the software.Steps 14~15 and 19 can be skipped when old double-sided tapes still provide sufficient stickiness.

What you need

Step 1

              Check the appearance of the laptop before replacement
  • Please check the appearance before fixing the laptop. For example: The laptop has been spread by the battery inside (up to 5 mm).

Please check the appearance before fixing the laptop. For example: The laptop has been spread by the battery inside (up to 5 mm).

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Step 2

              Check the status of the battery before replacement (optional)
  • This is an optional step. This step can be skipped when users don’t want to know the battery status or don’t have the software.
  • Check the “cycle times” by battery software.
  • Suggested software: (1) BatteryInfoView, (2) BatteryMon.
  • Background: The number of “cycle times” depends on battery usage. It usually > 0. A Li-ion battery usually has “cycle times” about 500~1000. REF: https://doi.org/10.31224/osf.io/swcyg
  • For example: BatteryInfoView shows that “Number of charge/discharge cycles” is 306 (red box). BatteryMon shows that “Charge cycles” is 306 (blue box).

This is an optional step. This step can be skipped when users don’t want to know the battery status or don’t have the software.

Check the “cycle times” by battery software.

Suggested software: (1) BatteryInfoView, (2) BatteryMon.

Background: The number of “cycle times” depends on battery usage. It usually > 0. A Li-ion battery usually has “cycle times” about 500~1000. REF: https://doi.org/10.31224/osf.io/swcyg

For example: BatteryInfoView shows that “Number of charge/discharge cycles” is 306 (red box). BatteryMon shows that “Charge cycles” is 306 (blue box).

Step 3

              Teardown the laptop until the Li-ion battery appears
  • Go to the back side of the laptop.
  • Remove the screw with a “+” screwdriver (the red circle).
  • Number of screws: 1

Go to the back side of the laptop.

Remove the screw with a “+” screwdriver (the red circle).

Number of screws: 1

Step 4

  • Go to the front side of the laptop. Behind the LCD monitor.
  • Remove the screw with a “+” screwdriver (the red circle).
  • Move to the other side and remove the screw with a “+” screwdriver (not shown).
  • Number of screws: 2

Go to the front side of the laptop. Behind the LCD monitor.

Move to the other side and remove the screw with a “+” screwdriver (not shown).

Number of screws: 2

Step 5

  • Go to the back side of the laptop.
  • Lever the plastic part by crowbar gently.
  • Suggested tools: (1) Crowbar, (2) “-” screwdriver.

Lever the plastic part by crowbar gently.

Suggested tools: (1) Crowbar, (2) “-” screwdriver.

Step 6

  • Rotate the laptop 180°.
  • Remove the screws with a “+” screwdriver (red circles).
  • Number of screws: 4

Rotate the laptop 180°.

Remove the screws with a “+” screwdriver (red circles).

Number of screws: 4

Step 7

  • Remove the “NFC cover” with a lever gently. Do not break the retaining buckle.
  • Suggested tools: (1) fingernail, (2) “-” screwdriver.
  • NOTE: Do not break the retaining buckle.

Remove the “NFC cover” with a lever gently. Do not break the retaining buckle.

Suggested tools: (1) fingernail, (2) “-” screwdriver.

NOTE: Do not break the retaining buckle.

Step 8

  • Remove the screws with a “+” screwdriver (red circles).
  • Number of screws: 4
  • NOTE: If the battery is severely swollen, you will see the back of the laptop stretched open after the screws are removed.

NOTE: If the battery is severely swollen, you will see the back of the laptop stretched open after the screws are removed.

Step 9

  • Rotate the laptop 180°.
  • Tear off the plastic sheet (silver) and double-sided tape (black). The main thing is to let the screws hidden underneath show up.
  • NOTE: It is difficult to remove the double-sided tape completely, and some remain on the surface, but it does not affect entire the repair process.
  • CAUTION: This step is a “destructive” teardown and cannot be restored to its original state.

Tear off the plastic sheet (silver) and double-sided tape (black). The main thing is to let the screws hidden underneath show up.

NOTE: It is difficult to remove the double-sided tape completely, and some remain on the surface, but it does not affect entire the repair process.

CAUTION: This step is a “destructive” teardown and cannot be restored to its original state.

Step 10

  • Remove the screws with a “+” screwdriver (red circles).
  • Number of screws: 6

Number of screws: 6

Step 11

              Open the back side of the laptop
  • Rotate the laptop 180°.
  • Follow the direction of the red arrow and open the backside of the laptop from the open side, where the cooling cooper tube can be obviously been seen.
  • The swollen Li-ion battery appears (the white package).
  • CAUTION: If the backside is opened from other directions, the flat cable may be broken or the plug may be damaged (the red circle).

Follow the direction of the red arrow and open the backside of the laptop from the open side, where the cooling cooper tube can be obviously been seen.

The swollen Li-ion battery appears (the white package).

CAUTION: If the backside is opened from other directions, the flat cable may be broken or the plug may be damaged (the red circle).

Step 12

              Remove the old or damaged Li-ion battery
  • Remove the screws with a “+” screwdriver (red circles).
  • Number of screws: 7
  • NOTE: Please avoid flat cables when removing screws. For example: see the red box.
  • CAUTION: Don’t damage the Li-ion battery or something bad will happen, such as gas leakage, electrolyte leakage, fire, and explosion. REF: https://doi.org/10.31224/osf.io/swcyg

Number of screws: 7

NOTE: Please avoid flat cables when removing screws. For example: see the red box.

CAUTION: Don’t damage the Li-ion battery or something bad will happen, such as gas leakage, electrolyte leakage, fire, and explosion. REF: https://doi.org/10.31224/osf.io/swcyg

Step 13

  • Lift the Li-ion battery gently.
  • Pull out the flat cable gently and then remove the Li-ion battery completely.
  • Background: About the flat cable. Generally speaking, the red thick line is the “+” power line; the black thick line is the “-” power line; other thin lines are signal lines.
  • CAUTION: Don’t damage the Li-ion battery or something bad will happen, such as gas leakage, electrolyte leakage, fire, and explosion. REF: https://doi.org/10.31224/osf.io/swcyg

Lift the Li-ion battery gently.

Pull out the flat cable gently and then remove the Li-ion battery completely.

Background: About the flat cable. Generally speaking, the red thick line is the “+” power line; the black thick line is the “-” power line; other thin lines are signal lines.

Step 14

              Replace the old double-sided tapes (optional)
  • Condition: The double-sided tape of the plastic part is degummed and has lost its stickiness. The plastic part clearly leaves the surface.
  • Remove the double-sided tape that has lost its stickiness.

Condition: The double-sided tape of the plastic part is degummed and has lost its stickiness. The plastic part clearly leaves the surface.

Remove the double-sided tape that has lost its stickiness.

Step 15

  • Use new double-sided tape.
  • Paste the plastic part back to its original position.
  • Do the same on the other side if necessary.
  • Suggestion: Do the same on the other side even though the plastic part sticks right on the surface. Because the old double-sided tape might not provide sufficient stickiness.
  • Other methods: The epoxy AB glue can replace the double-sided tape.

Use new double-sided tape.

Paste the plastic part back to its original position.

Do the same on the other side if necessary.

Suggestion: Do the same on the other side even though the plastic part sticks right on the surface. Because the old double-sided tape might not provide sufficient stickiness.

Other methods: The epoxy AB glue can replace the double-sided tape.

Step 16

              Install new Li-ion battery
  • Plug the cable into the new Li-ion battery gently and tightly.
  • To reassemble the laptop, follow steps 3~11 in reverse order. Some possible conditions and how to handle them will be described in the following steps.
  • NOTE: Make sure the cable is firmly inserted (the red box).
  • CAUTION: If the cable is not firmly inserted. Several worse conditions might happen. (1) Power failure (No electricity) and (2) Unstable connection cause an electric arc, fire, and explosion.
  • NOTE: Make sure the cable is securely fastened (red circles).
  • CAUTION: If the cable is not securely fastened. The cable might be squeezed by other parts, causing an unstable power supply and even safety issues (arc, fire, and explosion). REF: https://doi.org/10.31224/osf.io/swcyg

Plug the cable into the new Li-ion battery gently and tightly.

To reassemble the laptop, follow steps 3~11 in reverse order. Some possible conditions and how to handle them will be described in the following steps.

NOTE: Make sure the cable is firmly inserted (the red box).

CAUTION: If the cable is not firmly inserted. Several worse conditions might happen. (1) Power failure (No electricity) and (2) Unstable connection cause an electric arc, fire, and explosion.

NOTE: Make sure the cable is securely fastened (red circles).

CAUTION: If the cable is not securely fastened. The cable might be squeezed by other parts, causing an unstable power supply and even safety issues (arc, fire, and explosion). REF: https://doi.org/10.31224/osf.io/swcyg

Step 17

              Stick back the plastic sheet and double-sided tape
  • Condition: The stickiness of the old double-sided tape (black) is not sufficient to stick back the plastic sheet (silver).
  • Use new double-sided tape (white) to stick the plastic sheet and the old double-sided tape.
  • NOTE: The new double-sided tape should avoid the soundhole (red box).

Condition: The stickiness of the old double-sided tape (black) is not sufficient to stick back the plastic sheet (silver).

Use new double-sided tape (white) to stick the plastic sheet and the old double-sided tape.

NOTE: The new double-sided tape should avoid the soundhole (red box).

Step 18

  • Condition: The damaged plastic sheet (silver) is caused by the “destructive” teardown in step 9.

Condition: The damaged plastic sheet (silver) is caused by the “destructive” teardown in step 9.

Step 19

              Spacing fixing (optional)
  • Condition: If the stickiness of the double-sided tape is not sufficient, causing a spacing.
  • Suggested method: Repeat steps 14 and 15.
  • Other methods: Use tape to fix the problem. In this case, the yellow tapes are used for the clear demonstration. Users can use other color tapes.

Condition: If the stickiness of the double-sided tape is not sufficient, causing a spacing.

Suggested method: Repeat steps 14 and 15.

Other methods: Use tape to fix the problem. In this case, the yellow tapes are used for the clear demonstration. Users can use other color tapes.

Step 20

              Check the laptop after replacing the battery
  • After replacing the battery, please check the appearance of the laptop.
  • Please turn on the laptop and unplug the AC power line to check the functionality of the battery.

After replacing the battery, please check the appearance of the laptop.

Please turn on the laptop and unplug the AC power line to check the functionality of the battery.

Step 21

              Check the status of the battery after replacement (optional)
  • This is an optional step. This step can be skipped when users don’t want to know the battery status or don’t have the software.
  • Check the “cycle times” by battery software.
  • Suggested software: (1) BatteryInfoView, (2) BatteryMon.
  • For example: BatteryInfoView shows that “Number of charge/discharge cycles” is 0 (red box), indicating that the laptop treats the battery as a new one.

For example: BatteryInfoView shows that “Number of charge/discharge cycles” is 0 (red box), indicating that the laptop treats the battery as a new one.

This brief guide provides a simple Li-ion battery replacement procedure for Sony Vaio Duo 13.

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                    Hsien-Ching Chung

Member since: 02/02/2022

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Marino - Dec 8, 2022

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Grazie mille