iPhone 16 Plus Battery Replacement
Use this guide to replace the battery in your iPhone 16 Plus.
You'll need replacement back glass and battery adhesive to complete this repair. If your replacement battery does not include adhesive, use stretch release battery adhesive instead.
iPhone batteries are rated to hold 80% of their capacity for up to 500 charge cycles, or roughly 18–24 months. If your iPhone needs to be charged more often or runs slower, it might be time to replace the battery.
This iPhone uses a battery adhesive that requires an electrical charge to loosen it. Apple's repair manual recommends connecting a 9V battery for 90 seconds, but you can use a power supply or a power bank at a 5–20V output instead—the time required to loosen the adhesive will vary.
The guide below uses our VoltClip with a USB-C Power Delivery (PD) power source. This can either be the FixHub Portable Power Station, a USB-C PD power brick, or some laptops/smartphones. Not all USB-C PD power sources support 12 V (the FixHub Portable Power Station does). If the source doesn't support 12 V, the VoltClip will operate at the next lowest voltage—usually 9 V. This voltage is still sufficient to debond the adhesive. If you're using a different method, follow the guide normally and supplement your power source's operating procedures during the necessary steps.
After completing this repair, you may receive warnings about your replacement part and lose access to battery health data, but your new battery will otherwise work normally. As of iOS 18.1, battery health works with both genuine and aftermarket replacement batteries.
After your repair, run Repair Assistant to reset the battery metrics.
Some photos in this guide are of the non-Plus iPhone 16 and may contain slight visual discrepancies, but they won't affect the procedure.
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Werkzeuge
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65W USB-C GaN iFixit Fast Charger Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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ESD Safe Blunt Nose Tweezers Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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FixHub Portable Soldering Station Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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Hair Dryer Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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Heat Gun Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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iFixit Opening Picks (Set of 6) Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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iOpener Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
- Isopropyl Alcohol (90% or Greater) Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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Microfiber Cleaning Cloths Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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P2 Pentalobe Screwdriver iPhone Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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Packing Tape Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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Spudger Verfügbarkeit: Bestellbar Im Shop ansehen →
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Suction Handle Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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Tri-point Y000 Screwdriver Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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VoltClip Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
Ersatzteile
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iPhone 16 Plus Battery Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
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iPhone 16 Plus Battery Adhesive Verfügbarkeit: Externe Bezugsquelle Bei iFixit kaufen →
Anleitung
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Prepare your phone for disassembly
Unplug any cables from your phone.
Hold the power and either volume buttons and slide to power off your phone.
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Tape over any cracks
If your screen or back glass is badly cracked, lay overlapping strips of packing tape over the glass to protect yourself and make disassembly easier.
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Mark your opening picks
Measure 3 mm from the tip and mark the opening pick with a permanent marker.
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Remove the pentalobe screws
Use a P2 pentalobe driver to remove the two 7.7 mm-long screws on either side of the USB-C port.
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Heat the bottom edge
Apply a heated iOpener to the bottom edge of the back glass for two minutes.
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Insert an opening pick
Apply a suction handle to the bottom edge of the back glass, above the USB-C port.
Pull up on the handle with a strong, steady force to create a gap between the back glass and the frame.
Insert the tip of an opening pick into the gap.
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Back glass information
There's a delicate cable connecting the back glass to the phone, right next to the volume up button. Don't insert your pick here to avoid slicing the cable.
There are multiple spring contacts around the perimeter of the phone. Be extra careful not to insert your pick deeper than suggested in each step to avoid bending these contacts.
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Separate the bottom edge adhesive
Slide your pick back and forth along the bottom edge to separate the adhesive.
Leave your pick inserted in the bottom right corner to prevent the adhesive from resealing.
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Heat the right edge
Apply a heated iOpener to the right edge of the back glass for two minutes.
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Separate the bottom right corner adhesive
Slide your pick around the bottom right corner and slide it halfway up the right edge, or until you feel a hard stop at a clip securing the back glass.
Leave this pick inserted to prevent the adhesive from resealing.
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Heat the left edge
Apply a heated iOpener to the left edge of the back glass for two minutes.
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Separate the left edge adhesive
Insert a second opening pick at the bottom edge.
Slide the second pick around the bottom left corner and along the left edge of the screen to separate the adhesive and release the metal clips.
Leave this pick inserted at the top left corner to prevent the adhesive from resealing.
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Heat the top edge
Apply a heated iOpener to the top edge of the back glass, angled to include the volume buttons, for two minutes.
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Separate the top edge adhesive
Slide your opening pick across the top edge and around the top right corner to the volume up button to separate the adhesive.
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Swing open the back glass
Gently swing open the back glass towards the volume buttons.
Support the back glass with a clean, sturdy object like a small box to avoid straining the cable.
Remove the opening picks.
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Unfasten the middle connector cover
Use a tri-point Y000 driver to remove the two 1.3 mm-long screws securing the middle connector cover.
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Remove the middle connector cover
Use blunt-nose tweezers or your fingers to slide the cover towards the left edge of the phone and release its hook from its slot on the logic board.
Remove the cover.
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Disconnect the wireless charger
Use the point of a spudger to pry up and disconnect the wireless charging coil press connector.
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Remove the back glass
Lift the back glass off the frame and remove it.
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Assemble the VoltClip
Plug the VoltClip's barrel connector into the USB-C elbow.
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Peel up the silver tab
Use a clean fingernail or an opening pick to peel up the silver tab at the bottom edge of the battery.
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Attach the alligator clips
Attach the red alligator clip to the silver tab on the battery.
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Step 23
Attach the black alligator clip to the grounding screw.
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Connect power to the VoltClip
Make sure the red alligator clip isn't touching any stray metallic surfaces.
Connect a powered USB-C cable to the USB-C elbow and wait 90 seconds for the adhesive to loosen.
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Disconnect the VoltClip
Disconnect the USB-C cable from the elbow, then disconnect the alligator clips.
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Remove the battery
Grip the silver tab and lift the battery out of the frame.
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Disassembly complete
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Remove residual battery adhesive
Use a pair of tweezers to peel up any large pieces of residual battery adhesive from the iPhone frame.
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Remove adhesive residue
Use coffee filters or a lint‑free cloth and high‑concentration (>90%) isopropyl alcohol to wipe off any remaining battery adhesive residue from the iPhone frame.
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Remove the top battery‑side liner
Lay the old battery with the adhesive facing up next to the new battery. Lay the new adhesive on the new battery to see how it needs to be applied.
If the battery‑side of your adhesive has two liners, remove the top liner.
If the battery‑side of your adhesive has one liner, remove it.
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Apply the top of the adhesive
With the old battery nearby so you can align the new adhesive correctly, use your finger to lightly press the new adhesive to the new battery.
Compare the placement of the new adhesive with the old adhesive.
Once the new adhesive is aligned correctly and matches the old adhesive, press it firmly to the battery.
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Remove the bottom battery‑side liner
If the battery‑side of your adhesive still has a bottom liner on it, remove it now.
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Press the adhesive
Lay the adhesive onto the battery and press it into place.
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Fold the conductive tab
Use your finger to fold the conductive tab around to the front of the battery and press it into place.
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Remove the iPhone‑side liner
Peel the iPhone‑side liner off of the battery adhesive.
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Connect the battery
Hold the battery over its place in the iPhone, but don't lower it into place yet.
To ensure the battery is properly placed, use a spudger or your finger to connect the battery press connector.
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Place the battery
With the battery connected, lower it into its place in the iPhone.
Use your fingers to press the battery into place.
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Disconnect the battery
Use a spudger or your finger to disconnect the battery to protect your iPhone during the rest of the reassembly process.
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Remove the back glass adhesive
Use the pointed end of a spudger to press and roll the adhesive until you can grip it with a pair of tweezers.
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Step 40
Use the tweezers to pull the adhesive off of the phone.
Repeat the previous step and this step until all of the adhesive is removed.
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Clean the frame
Wrap a microfiber or lint-free cloth over the point of a spudger and apply a few drops of high-concentration isopropyl alcohol (over 90%) to the cloth.
Wipe in one direction along the perimeter of the frame to clean the adhesive residue.
Wait a few minutes before proceeding to make sure any excess alcohol has evaporated.
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Clean the back glass
Apply a few drops of high-concentration isopropyl alcohol (over 90%) to a microfiber or lint-free cloth and wipe around the perimeter of the back glass to prepare the surface for new adhesive.
If any clips on the back glass are bent, gently straighten them with your fingers.
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Orient the adhesive
Orient your replacement adhesive over the frame with the larger blue liner on the underside and its pull tab in the bottom-right corner.
Use features such as the camera cutout and notches along the edges to ensure the adhesive is oriented correctly.
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Expose the bottom edge of the adhesive
Use the pull tab to begin peeling the back liner off of the adhesive starting from the bottom, but do not remove the liner all the way.
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Apply the adhesive
Hold the blue liner out of the way and align the adhesive with the bottom edge of the iPhone.
Lay the bottom edge of the adhesive into its recess in the frame, making sure the iPhone's spring contacts are aligned with their cutouts in the liner.
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Step 46
Continue peeling the back liner off of the adhesive while pressing the adhesive into place along the edges of the iPhone's frame.
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Press the adhesive into place
Use the flat end of a spudger to press the adhesive into place around the perimeter of the frame.
Be careful not to touch the spring contacts sticking through the pink liner.
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Remove the pink liner
Use the small pull tab in the top-right corner to remove the pink adhesive liner.
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Step 49
Once the top liner is removed, there should be three narrow liners on top of the adhesive with pull tabs near the bottom edge.
If you don't see these pull tabs, you may have accidentally removed the thin liners in the previous step. If the adhesive is clean and properly aligned, you may proceed, just be careful not to touch anything to the exposed adhesive until you are ready to install the back glass.
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Connect the charging coil
Prop up the back glass along the right edge of your iPhone, using a box or similar sturdy object to support the screen.
Use the flat end of a spudger or your finger to connect the charging coil press connector.
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Connect the battery
Use the flat end of a spudger or your finger to connect the battery.
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Install the cover
Lay the connector cover on the phone so the hooks are slightly to the left of their slots in the logic board.
Use your finger to press the connector cover down and to the right until both hooks slide into their slots.
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Install the cover screws
Use a tri-point Y000 driver to install the two 1 mm‑long screws securing the middle connector cover.
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Remove the final adhesive liners
Use the blue tabs to remove the liners from the bottom, left, and top edges of your iPhone. Wait to remove the liner along the right edge.
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Step 55
Without letting the back glass touch the adhesive, hold the back glass over the phone so you can access the final liner along the right edge of the phone.
Use a pair of tweezers or your fingers to remove the final liner along the right edge of the phone.
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Place the back glass
Hold the back glass above the phone and align it with the frame.
Lay the glass straight down onto the frame and press until the clips engage.
Press around the perimeter of the back glass to engage all clips.
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Heat the back glass
To help the adhesive bond, apply heat to the edges of the back glass using an iOpener, hair dryer, or heat gun until it's hot to the touch.
Firmly press around the perimeter of the back glass.
If you have screen vise clamps, use them to strengthen the bond of your new adhesive. If not, keep reading for more ways to secure the back glass.
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Press the back glass
If you have the box your iPhone came in, take the lid and place it on a flat surface.
Place your iPhone screen-side-up in the lid of your box with the camera bump in its recess.
Find something close to the size of your iPhone, but taller than the sides of the box. Stack it on top of the iPhone, followed by a few heavy objects.
Leave the objects in place for at least thirty minutes. The lighter the objects, the longer they should be left. Ideally, leave them stacked overnight.
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Step 59
Place the iPhone screen-side-down on a soft, flat surface.
Apply tape to the back glass to protect its finish.
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Step 60
Place two layers of coins or similarly thick objects on the tape along the edges of the back glass.
Evenly distribute the coins and make sure they are at least as thick as the camera bump.
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Step 61
Stack multiple books or other heavy objects on your iPhone.
Leave the objects in place for at least thirty minutes. The lighter the objects, the longer they should be left. Ideally, leave them stacked overnight.
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Install the pentalobe screws
Use a P2 pentalobe driver to install the two 7.7 mm-long screws on either side of the charging port.
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Abschluss
After your repair, run Apple's Repair Assistant. Navigate to Settings → General → About → Parts & Service History, tap Restart & Finish Repair, and follow the onscreen prompts.
Calibrate your newly installed battery after completing this guide.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting, or ask our iPhone 16 Plus Answers Community for help.