How to Properly Remove and Replace Phone Batteries

Safe Battery Replacement Guide

Replacing a phone battery is one of the most common repairs. Done correctly, it can extend your phone's life by years.

When to Replace Your Battery

Signs your battery needs replacement:

• Rapid drain: Full charge lasts only a few hours
• Swelling: Battery pushing against screen (STOP using immediately!)
• Unexpected shutdowns: Phone dies at 20-30%
• Slow charging: Takes much longer than before
• Excessive heat: Gets very hot during use

Safety Precautions ⚠️

Battery fires are real and dangerous!

1. Never puncture a lithium battery
2. Work in a ventilated area
3. Have a fire extinguisher nearby
4. Don't use if battery is swollen or damaged
5. Dispose of old batteries properly

Removal Process

Step 1: Preparation

• Discharge battery to below 25% (reduces fire risk if punctured)
• Power off device completely
• Remove SIM tray and any cases

Step 2: Opening the Device

• Apply heat to soften adhesive
• Use suction cup and pry tool
• Go slowly - rushing causes damage

Step 3: Disconnect Battery First

• Locate battery connector
• Use plastic spudger to disconnect
• Never skip this step!

Step 4: Remove Old Battery

• Apply heat to bottom of device
• Use adhesive removal tabs (pull slowly)
• If tabs break, use isopropyl alcohol to dissolve adhesive
• Never bend or pry aggressively

Installation Process

1. Clean adhesive residue
2. Apply new adhesive strips
3. Position new battery carefully
4. Connect battery connector firmly
5. Test before closing device

Post-Replacement

• Calibrate new battery:
  1. Charge to 100%
  2. Use until auto shutdown
  3. Charge to 100% again
• First few charge cycles may seem off - this is normal

Common Mistakes to Avoid

❌ Using metal tools near battery ❌ Pulling adhesive tabs too fast ❌ Forgetting to disconnect battery ❌ Improper disposal of old battery ❌ Using non-OEM replacement batteries

Battery Disposal

Lithium batteries are hazardous waste. Dispose properly:

• Electronics stores often accept old batteries
• Local recycling centers
• Never throw in regular trash!

Stay safe and happy repairing!