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🔋 Power up your Sony gear with confidence — never miss a beat!
This Rechargeable 0-Cycle Replacement Battery (model 702428) features a 520mAh polymer cell designed specifically for Sony INZONE H9, WH-CH720N headphones, and WF-1000XM4 charging cases. Engineered with premium A+ grade cells, it delivers fast charging, high efficiency, and robust durability. Advanced safety features including overcharge, overheat, and short-circuit protection ensure reliable performance. The package includes a tool kit for installation, with tutorial videos available online. Supported by a 6-month warranty, this battery is the perfect upgrade to keep your Sony audio devices powered and ready.
| ASIN | B0D3DHLD6X |
| Antenna Location | Indoor/Outdoor |
| Battery Capacity | 520 Milliamp Hours |
| Battery Cell Composition | Polymer |
| Battery Cell Type | Polymer |
| Battery Weight | 100 Grams |
| Best Sellers Rank | #1,441 in Camcorder Batteries |
| Brand | SwarKing |
| Manufacturer | shenzhen baoran keji youxiangongsi |
| Model Name | 702428 US |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Recommended Uses For Product | Indoor/Outdoor |
| Reusability | Rechargeable |
| Unit Count | 1.0 Count |
| Voltage | 3.7 Volts (DC) |
| Warranty Description | 6 Month Warranty Against Manufacturer Defects |
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