𝟮𝟬𝟮𝟓 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝘀 Z55H Battery, Compatible with Sony Headset Battery for WF-1000XM4 • Truly Wireless Earbud Headphones Battery+ Tools [2PCS]

**Product Review: SONXIAVIVO 2024 New Upgrades Z55H Battery**The SONXIAVIVO 2024 New Upgrades Z55H Battery offers a seamless replacement experience for Sony WF-1000XM4 Truly Wireless Earbud Headphones. Here's what I found:**Positive Points:**- The package comes with useful tools for hassle-free battery replacement.- Thoughtful packaging ensures the components are well-protected.- The provided glue features a long, thin tip for precise application, aiding in clean placement.- Affordable pricing considering the quality and quantity of items included.- Battery replacements fit perfectly without any compatibility issues.- Batteries hold charge effectively, ensuring prolonged usage.- The product fulfills its intended purpose efficiently.- Accurate description matching the actual product.- Swift shipping and delivery ensure a prompt replacement process.**Areas for Improvement:**- If you already own pointed tweezers and electronic plastic tools, consider purchasing only the batteries.- The included tweezers lack a strong grip, which may be challenging when handling small cables during installation.**Overall Opinion:**The SONXIAVIVO 2024 New Upgrades Z55H Battery is a reliable solution for extending the lifespan of Sony WF-1000XM4 earbuds. With its user-friendly design and efficient performance, it's a recommended choice for those seeking affordable and high-quality battery replacements.

I have the WF1000XM5s. Candidly, I think they're a step down. The only issue is that my xm4s were experiencing the dreaded battery issue that has come to plague them. My understanding is that this stemmed from a bad firmware update some time ago that has since been corrected. Nonetheless, it destroyed the batteries.My left battery wouldn't charge above 60%, but worse is that it would die in 20 minutes. I was ready to toss these until I watched a few YouTube vids on replacing the battery.Some advice: Lots of the vids will show you fully taking apart the XM4s. No need to do this! Heat the shell of the earbuds lightly, then slowly pry it slighly open. From there, you can use the included flat pick (looks like a guitar pick) to separate the board from the battery. From there, carefully use the included screwdriver to lift the battery out. Put the new one in, press the board back down to the battery, and use the included glue to put a small bead around the bud. That's it! So much easier than the YouTube directions. I was able to do both buds in 15 minutes.Even better? The buds now charge to 100% and last as long as new!

Batteries look and fit like original. Replacement was surprisingly easy, took 3-4 min each. Only used plastic spudger, flat screwdriver and glue from kit. Hair dryer to fat end of earbud until 140F, squeeze along the sides/seam toward middle of fat end and used fingernail to separate shell. NO NEED to disconnect any ribbon cable connectors! Just use blue spudger to slowly lift little circuit board from top of battery, leaving most of sticky glue on the board. Pry battery up/out with screwdriver (or toothpick, whatever). Pop new battery in and press things back together. Glue holds well, left shell painter's taped along edges for 2 hours. All good.

The most important part: the battery replacement worked and now I don't have to pay hundreds on new headphones. Adhesive worked great and was easy to apply. The included tweezers were so flimsy I couldn't use them to hold a tiny ribbon cable so that was not really needed. I had to use a magnifying glass on a base while I worked to see what the heck I was doing. There was a ton of stuff in the package that was not really needed.

My headphones is not holding charge since last winter... This kit has everything you need. Go find the tutorial from ifixit, follow it and you are all good to go