[QUICK FIX!] Replacing the battery on a Sony WF-1000XM4 earbud

Let's replace the battery on a Sony WF-1000XM4 earbud! These are amazing wireless Bluetooth earbuds, but the rechargeable batteries died on me. I was able to find the exact replacement ZeniPower Z55H lithium ion batteries and managed to swap them. (Picked them up on AliExpress, but they can also be found on Amazon and other sites - search for the model number Z55H!) This fix requires the use of a heat gun to break the bonds of the old glue holding the buds together. Once open, it's a fairly simple swap. The last bit does require some glue, so make sure you have the right kind handy. I used B-7000 glue to get the job done.

EDIT: On both sides of the battery, on the boards that attach, there's a small metal prong/tine that is supposed to be pointed/angled towards the battery to provide a spring-tensioned connection to the battery. Another way for me to explain this metal tine is to imagine placing your hand flat on a table, and then only raise your index finger while keeping everything else flat on the table. That finger would come into contact with the battery as the battery is lowered into position. And the same, but reversed, for the other side of the battery. Therefore, when reassembling, make sure that the tine is pointed upwards "enough" to make contact with the battery!!

Sorry for the blurry video - I didn't realize it wasn't in focus until after everything was done. Ughhh.