Use this guide to replace the battery in your iPhone 16 Plus.
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.
Use a P2 pentalobe driver to remove the two 7.7 mm-long screws on either side of the USB-C port.
Use the point of a spudger to pry up and disconnect the wireless charging coil press connector.
Lift the back glass off the frame and remove it.
Use a clean fingernail or an opening pick to peel up the silver tab at the bottom edge of the battery.
Attach the red alligator clip to the silver tab on the battery.
Attach the black alligator clip to the grounding screw.
Your adhesive should be fully loosened at this point. If your battery doesn't budge during the step, reconnect the VoltClip for an additional minute and try again.
Grip the silver tab and lift the battery out of the frame.
Alternatively, you can use a suction handle to pull the battery out. If the battery doesn't come out easily, don't force it-reconnect the VoltClip for one minute.
Congratulations on completing disassembly! The remaining steps will show how to reassemble your iPhone.
Some reassembly photos are of the iPhone 16 non-Plus, which may look slightly different. The procedure is correct.
Use a pair of tweezers to peel up any large pieces of residual battery adhesive from the iPhone frame.
If the battery-side of your adhesive still has a bottom liner on it, remove it now.
Lay the adhesive onto the battery and press it into place.
Use your finger to fold the conductive tab around to the front of the battery and press it into place.
Peel the iPhone-side liner off of the battery adhesive.
Use a spudger or your finger to disconnect the battery to protect your iPhone during the rest of the reassembly process.
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.
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.
Use the small pull tab in the top-right corner to remove the pink adhesive liner.
To evenly compress your iPhone and strengthen the bond of the back glass to the frame, you need to account for the camera bump.
If you have the box your iPhone came in, take the lid and place it on a flat surface.
If you don't have your original box, skip this step for an alternate method.
If you don't have the original box for your iPhone, follow the next three steps for another method to evenly compress the back glass.
Place the iPhone screen-side-down on a soft, flat surface.
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