650mAh Replacement Battery for Sony 1-756-920-31 / Plantronics PR-423350
Sony 1-756-920-31 / Plantronics PR-423350 Replacement Battery for Wireless Headsets – 650mAh
Whether you’re working, gaming, or enjoying music, keep your wireless headsets powered longer with this premium 650mAh replacement battery. Specially designed as a Sony MDR-DS6500 / MDR-XB950BT battery replacement, this high-performance Lithium-Polymer rechargeable battery ensures reliable runtime and seamless compatibility with your favorite Bluetooth headsets.
Engineered for consistent performance, this battery replaces multiple OEM part numbers, including PR-423350, 1-756-920-21, 1-756-920-31, LIS1427HEPCC, LIS1427NHPCC. With its precision fit and robust design, you can trust it to keep you connected—whether for calls, music, or immersive gaming sessions.
🔋 Technical Specifications:
- Capacity: 650mAh
- Voltage: 3.7V
- Cell Technology: Lithium-Polymer
- Dimensions: 52.30 x 33.53 x 3.90mm
✅ Compatible Headset Models:
Sony: MDR-DS6500, MDR-XB950BT
🔧 Replaces Part Numbers:
Sony / Plantronics: PR-423350, 1-756-920-21, 1-756-920-31, LIS1427HEPCC, LIS1427NHPCC
💡 Why Choose This Replacement Battery?
- ✔️ Longer runtime with 650mAh high-capacity cells
- ✔️ Built with advanced Lithium-Polymer technology for durability and reliability
- ✔️ Perfect fit for Sony wireless headsets – no modifications needed
- ✔️ Rechargeable design reduces waste and saves money long-term
📦 Warranty & Returns:
Buy with confidence – this replacement battery comes with a 30-day money-back guarantee and a 12-month replacement warranty.
🎧 Stay powered, stay connected! Upgrade your Sony wireless headset with this reliable replacement battery and enjoy uninterrupted sound for work, calls, music, and gaming.
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🔋 What’s mAh All About?
🔋 What’s mAh All About?
mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨
Before ordering please read
Before ordering please read
Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.
How to Look after your new lithium battery!!
How to Look after your new lithium battery!!
See how to look after your battery if its lithium Lithium Care
Delivery and Shipping
Delivery and Shipping
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