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Description
The Oppo A3 Pro 5G (Model CPH2639) replacement battery features an advanced high-density structure designed to maintain a healthy lifespan even under consistent fast-charging conditions. To prevent errors with charging logic or degradation of daily runtime, installing a certified match is required.
Technical Battery Specifications
When purchasing a replacement cell from a parts wholesaler or online hardware store, confirm that the parameters printed on the protective wrapping match these factory specifications:
| Feature | Factory Hardware Specification |
| Compatible Model | Oppo A3 Pro 5G (Strictly Model CPH2639) |
| Battery Model Number | BLPA77 (Must match exactly) |
| Cell Core Composition | Lithium-ion Polymer (Li-Po) |
| Typical Capacity | 5100 mAh ($19.82\text{ Wh}$) |
| Rated Capacity | 5000 mAh ($19.43\text{ Wh}$) |
| Nominal Voltage | 3.91 V |
| Limited Charging Voltage | 4.48 V |
| Fast Charge Protocol | 45W SUPERVOOC Flash Charge |
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