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The Z55H Replacement Battery is a high-capacity, Grade A+ Li-ion battery designed specifically for Sony WF-1000XM4 earbuds. With 75mAh capacity and 3.85V output, it offers over 1200 charge cycles backed by CE, ROHS, and UL certifications. Included is a glue tool repair kit for easy DIY installation, making it the perfect cost-effective solution to restore your earbuds’ battery life and performance.
| ASIN | B0CY2P28YQ |
| Antenna Location | Headphones |
| Battery Capacity | 75 milliamp_hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Weight | 35 g |
| Best Sellers Rank | #551,975 in Health & Household ( See Top 100 in Health & Household ) #2,375 in Coin & Button Cell Batteries |
| Brand | PFHL |
| Compatible Phone Models | For Sony WF-1000XM4 Wireless Headphones |
| Customer Reviews | 3.7 out of 5 stars 23 Reviews |
| Manufacturer | ShenZhen Maxpower Technology Co., Ltd. |
| Model Name | Z55H Battery |
| Model Number | Z55H Battery |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Recommended Uses For Product | Headphones |
| Reusability | Rechargeable |
| Voltage | 3.85 volts |
| Warranty Description | 1 |
E**.
Refreshes your pricey ear buds for a few dollars
Replaced the batteries on my Sony WF-1000XM4. Really easy to do with YouTube tutorials. I would caution everyone to use gloves when using the stainless steel guitar pick shaped tool, they can cut you skin. Batteries work as expected. My ear buds now charge fully and last more than 10 minutes.
J**E
Worked
Included everything needed to change the battery. Follow the iFixit guide to complete it. Battery in one side not charging properly yet-probably something I did wrong rather than a fault with this kit but just to flag the reason for 4 stars
A**R
Missing glue and other items
The product shipped does not match the description. Glue was missing from the package. Other items shown in the photos were also not included.
J**R
Works Great!
I ordered these batteries for my Sony wf-1000xm4 buds. My head phones were over heating and my battery life was horrible. While replacing the batteries takes patience, It was actually fairly easy. The tools included helped alot! After successfuly replacing the batteries my buds are functioning better than when I bought them!
P**A
no glue
didn't come with glue
B**Y
Not as good as original but works 80%.
Doesn’t charge to 100% after a few cycles. Fairly easy to install but needs steady hands or ribbon cable will be damaged.
W**N
Tedious, and not for the faint of heart.
I'm going to preface this and saying that I have a long history of opening up electronics and repairing them. As such I have a basic knowledge of how to properly unhook stuff, temperatures needed to unseal glues, etc. This is a relatively straightforward fix, but requires a significant amount of tech know-how not to screw up your earbuds. So if you're new to this, just realized that there could be a high chance that you permanently destroy your earbuds. I would highly recommend you get someone to do it that has experience. Now a few suggestions that I personally have. Make sure you change them both, don't just change the one earbud that is having issues, because it will cause the other one to have the same fast drain issues. Also make sure that you reinitialize your earbuds once you've replaced the batteries so that it can charge properly. Lastly use a toothpick or some other item to spread the adhesive when you go to reseal the headphones, if you try and squeeze it right out of the tube you're going to get it everywhere but if you do as long as you're quick you can clean it up with alcohol. This fixed my earbuds, and I've hadn't had any issues thus far.
M**X
Sony earbud
All the tools are great. Sadly mine didn’t have any glue so I had to use another type.
Trustpilot
3 weeks ago
5 days ago