iPhone Battery Replacement Guide
Battery draining fast? Phone dying at 30%? This guide walks you through replacing your iPhone battery yourself.
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⚡ Make Your Battery Last Longer
Quality chargers and cables extend battery cycles by 30–50%.
Counterfeit chargers cook batteries — buy MFi-tested
Cheap counterfeits push wrong voltage and shorten battery life
Top up on the go without burning battery cycles
Microfiber + brush + alcohol wipes
- Lithium batteries can catch fire if punctured — be careful!
- Never pry directly on the battery
- If battery is swollen, take it to a professional
🛠️ What You'll Need
Match your exact iPhone model
View on Amazon →Pentalobe screwdriver, pry tools, suction cup
View on Amazon →Usually included with battery — secures it in place
📋 Step-by-Step Instructions
Power Off & Remove Bottom Screws
Turn off your iPhone. Remove the two pentalobe screws next to the charging port.
Open the Display
Use suction cup to lift the screen from the bottom. Open it like a book — the screen hinges at the top.
Disconnect the Battery
Remove the bracket covering the battery connector (2-3 screws). Disconnect the battery cable using a plastic pry tool.
Remove Adhesive Tabs
The battery is held down by adhesive strips. Locate the pull tabs at the bottom of the battery. Pull slowly and steadily — if they break, apply heat (hair dryer) to soften the adhesive.
Install New Battery
Apply new adhesive strips to the phone (not the battery). Press the new battery into place firmly.
Reconnect & Reassemble
Connect the battery cable. Replace the bracket. Close the display and reinstall the bottom screws.
Calibrate the New Battery
Charge to 100%, use until it dies, then charge to 100% again. This helps the battery gauge calibrate properly.
⚠️ When to Get Professional Help
- Battery is swollen or bulging
- Adhesive tabs broke and battery won't budge
- You're not comfortable working near lithium batteries
- Phone still has issues after battery replacement
Need a Pro?
Our partner technicians can do this repair with a 30-day warranty.
📞 (856) 914-1074 PC Medics of NJ • South Jersey📦 Mail-In Repair Service
Not comfortable doing this yourself? Send your device to a professional repair shop.
🛒 Recommended Products
The #1 repair kit — 64 bits, pro tools, lifetime warranty
EZ Fit tray — foolproof install, 9H tempered glass 2-pack
Charge iPhone, Watch & AirPods — one compact cube