Samsung Galaxy S25 Plus Battery Replacement

If your Samsung Galaxy S25 Plus is draining faster than usual, shutting down unexpectedly, or showing signs of a swollen back panel, it is time for a new battery. Modern Samsung devices now feature convenient pull tabs that make battery extraction much safer and simpler than older models. This guide will walk you through the process of safely opening the glass back, removing the wireless charging coil, and swapping out the degraded cell for a fresh one.

1. 1

   Power down and heat the device

   • Turn off your phone completely before starting any repairs.
   • Use a heat gun or hair dryer to apply even heat around the edges of the back glass for about two minutes to soften the waterproof adhesive.
2. 2

   Create an opening gap

   • Apply a suction cup to the lower section of the back glass and pull up gently to create a tiny gap.
   • Insert a plastic guitar pick into this gap to prevent the adhesive from resealing.
3. 3

   Slice the back glass adhesive

   • Slide the plastic pick around the entire perimeter of the phone to cut through the adhesive.
   • Be careful not to insert the pick too deeply near the camera module to avoid damaging the lenses, then carefully lift the back glass away.
4. 4

   Remove the wireless charging coil

   • Locate the Phillips screws securing the wireless charging coil and NFC antenna assembly over the motherboard.
   • Extract these screws and use a plastic spudger to gently unclip the assembly, setting it aside safely.
5. 5

   Disconnect the battery

   • Using your plastic spudger, immediately disconnect the main battery flex cable from the motherboard.
   • This is a critical safety measure that prevents accidental short circuits while you work on the internal components.
6. 6

   Extract the old battery

   • The Galaxy S25 Plus features built in blue pull tabs for battery removal.
   • Grasp the tabs firmly and pull up steadily to release the battery from the chassis.
   • If the adhesive is stubborn, apply a few drops of isopropyl alcohol under the battery edges to loosen it.
7. 7

   Install the replacement battery

   • Ensure the battery compartment is clean and free of leftover adhesive or alcohol residue.
   • Peel the protective liners off your new battery and press it firmly into the housing, ensuring the flex cable aligns perfectly with the motherboard socket.
8. 8

   Reassemble the internal components

   • Connect the new battery cable to the motherboard.
   • Reinstall the wireless charging coil assembly over the top and secure it tightly with the original Phillips screws.
9. 9

   Seal the back glass

   • Clean the old adhesive from both the phone frame and the back glass using isopropyl alcohol.
   • Apply the new precut adhesive to the frame, align the back glass, and apply steady pressure around the edges for several minutes to ensure a tight seal.