Revive your Sony WF-1000XM4 earbuds with our Z55H ZeniPower Replacement Battery Pack. Designed for seamless performance and longer life, these high-capacity 3.85V 70mAh batteries bring your earbuds back to full power. Whether you're replacing worn-out cells or upgrading performance, this pack includes 2 batteries + full tool kitfor easy DIY installation.

Don’t let a dying battery ruin your listening experience install in minutes and enjoy wireless audio like new again.

🔑 Key Features of Z55H ZeniPower Replacement Battery

🔋 High-Capacity 70mAh Power – Enjoy longer listening without interruptions
🎧 Perfect Compatibility – Tailored for Sony WF-1000XM4, CP1254, 1254
🛠️ Includes Full Tool Kit – No need to buy tools separately
⚡ Consistent 3.85V Output – Keeps your earbuds running at peak
🔧 Easy to Install – Designed for quick, hassle-free battery replacement
🧪 Durable & Reliable – High-quality lithium, leak-resistant construction
♻️ Eco-Friendly – Free from harmful chemicals, safe to use
💼 DIY Friendly Kit – Great for enthusiasts and technicians alike

📦 What’s in the Box

2 × Z55H ZeniPower Replacement Battery
1 × Full Set of Replacement Tools (Optional)

⚙️ Specifications

Model: Z55H
Voltage: 3.85V
Capacity: 70mAh
Compatibility: Sony WF-1000XM4 / CP1254 / 1254
Battery Type: Lithium Rechargeable
Tool Kit: Included
Condition: Brand New
Use Case: Left/Right earbuds and case battery replacement, performance restoration

❓ FAQs

Q: Are these batteries compatible with Z55H ZeniPower Replacement Battery?
✅ Yes, they’re specifically designed for WF-1000XM4 and CP1254 models.

Q: Is installation difficult?
🧰 Not at all. Tools are included, and installation is straightforward with basic care.

Q: How long does the battery last?
🔋 Typically up to 1 year depending on usage — just like the original battery.

Q: Can I replace the battery in both earbuds with this pack?
✅ Yes! The 2-pack allows you to replace both left and right earbud batteries.

Q: Is this safe for my earbuds?
✅ Yes, it’s made with high-quality, leak-resistant lithium components.

Q: Are these batteries good for the buds??
✅ Yes, These are genuine ZeniPower replacement batteries — trusted by many, not OEM.

🚚 Shipping & Delivery

🇬🇧 UK Customers:

✅ Free Tracked Shipping (1–5 working days)
⚡ Next Day Delivery available at checkout
📦 Ships from UK warehouse with secure packaging

🌍 International Shipping:

🌐 Ships worldwide via Royal Mail or tracked courier
⏱️ Delivery: 7–14 working days (up to 21 in remote areas)
📦 Safe packaging + full tracking included

💡 Note: Import VAT/duties may apply