Check out the video above or the step by step guide below for assistance with this repair

iFixit iPhone 4s Battery Replacement Guide

Here are some tools you may need to help you complete the repair.

Please note: A discounted simple toolset with the tools you need is available in a pop-up when you add this product to cart

• P2 Metal Pentalobe 0.8mm Screwdriver Tool
• #000 1.5mm Metal Phillips Screwdriver Tool (PH000)
• Mechanic AK-15 King ESD Anti-Static Stainless Steel Red Curved Tweezers
• 5x iGadget Plastic Flexible Opening Cards
• Nylon Antistatic Spudger Pry Tool
• Or get the P2 and #000 screwdrivers, tweezers, opening card and spudger together in our 8 Piece iPhone Repair Toolkit
• iGadget Plastic Alcohol 200mL Bottle with Pump Top
• iGadget Universal Magnetic Work Project Mat with Marker (30cm x 25cm)

Here are some helpful tips to assist you in completing a safe repair on your device. If you are unsure of something or have any questions, please feel free to contact us either by phone (0508 IGADGET) or by email

• Drain the battery below 25% and power the phone off before you start. A charged lithium-ion battery can catch fire if it's punctured or damaged
• Remove the pentalobe screws next to the dock connector. Seat the driver firmly so you don't strip them
• Push the back panel towards the top of the phone (it moves about 2mm), then lift it off, taking care not to break its plastic clips
• Track your screws on a magnetic mat or tape them to a drawing of your phone. They're different lengths, and a long screw in a short hole can damage the logic board
• Always unplug the battery before you remove any other parts. Keep metal tools away from the battery, and never bend, crush or puncture it.
• Remove the Phillips screws holding the battery connector (they're tight, so press down firmly and turn slowly), slide out the small gold contact clip, then lift the connector straight up from its bottom edge. Don't pry the socket; only four tiny solder points hold it
• Run a plastic card along the right edge of the battery to free the adhesive, then lift the battery out gently by its clear plastic pull tab, which can tear. If it's stuck, drip isopropyl alcohol under the edge and wait a minute
• On refit, sit the gold contact clip on top of the screw post, contact facing the battery connector. Wipe it clean, as finger oil can cause signal problems. Check the phone powers on and charges before refitting the back panel
• If the new battery drains fast or shuts off, reseat the battery connector, check it for foam or debris and make sure the flex isn't strained, then do a force restart