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🔋 Power up your Sony earbuds like a pro — don’t let dead batteries hold you back!
This 2-pack Z55H replacement battery set for Sony WF-1000XM4 earbuds delivers a reliable 70mAh lithium-ion capacity at 3.85V, restoring your earbuds’ original runtime. Complete with installation tools and backed by a 12-month warranty plus 24/7 support, it’s the perfect DIY solution to extend the life of your premium noise-cancelling earbuds.


| ASIN | B0BY4M7TF4 |
| Antenna Location | Laptop |
| Battery Capacity | 70 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Weight | 5 Grams |
| Battery capacity | 70 Milliamp Hours |
| Battery cell composition | Lithium Ion |
| Best Sellers Rank | #42,598 in Computers ( See Top 100 in Computers ) #343 in Laptop Batteries |
| Brand | EXMUMCMR |
| Compatible Phone Models | for WF-1000XM4 |
| Customer Reviews | 4.3 out of 5 stars 164 Reviews |
| Item Weight | 0.07 Pounds |
| Manufacturer | EXMUMCMR |
| Model Name | WF 1000XM4 |
| Model Number | Z55H |
| Number of Batteries | 2 D batteries required. (included) |
| Number of batteries | 2 D batteries required. (included) |
| Recommended uses for product | Laptop |
| Reusability | Rechargeable |
| UPC | 716032646887 |
| Unit Count | 2.0 Count |
| Unit count | 2.0 Count |
| Voltage | 3.85 Volts |
I**N
The screwdriver is too soft and just crumbles
Cannot attest to the quality of the batteries, but the screwdriver that came in the set is made of the worst quality metal out there. It just crumbles without unscrewing the screws in the earbuds
C**O
Good batteries and just enough glue
These batteries are labeled ZeniPower Z55H and they work well with my sets of WF-1000XM4 earbuds. Besides the heat gun, this package included everything needed to swap out the batteries. These new batteries with a full charge lasted 5 hours 10 minutes with noise-cancelling, much improved. For such a premium set of earbuds WF-1000XM4 from Sony, I expected the battery to last more than two years. But it has only been 1 year and 3 months, and one of the earbud became useless because of only 10 minutes of play time. Then 4 months later, the other could last only 20 minutes. I was going to throws my earbuds away, but hanks to those tutorial videos online, I can give this set of premium earbuds a second life. It turns out that this battery problem was not an isolated incident. Shame on Sony.
C**N
Baterías defectuosas
Una de las baterías no carga, viene completamente muerta
S**S
Awesome!
Very nice packaging with all necessary tools and even more than necessary tools lol. Will update this review after a year using these batteries
K**E
Overpriced.
Two useful batteries with a bag full of useless cheap "tools" just to make the price up.
I**.
Fixed my earbuds!
After owning them for 2 years, the batteries in my earbuds began to fail, with them only lasting 1 to 2 hours after fully charging. So I bought this set of batteries and used a guide on iFixIt to install them. Now both earbuds are back to lasting a whole 8 hours, saving me from having to buy a whole new set of Sony's expensive earbuds! Also of note, these batteries are branded ZeniPower, just like the ones Sony installed during manufacturing. I do not know for certain that they are genuine ZeniPower batteries, but they are very close. The originals (Left side and closer in the photos) had a slightly more prominent blue ring around them, but other than that, no visible difference.
Trustpilot
2 months ago
2 months ago