• High-quality rechargeable Li-ion Polymer Battery replacement • Perfect for replacing your aged, damaged and non-working battery • Highly recommend professional installation, novices need the guidance of professional • Each item will be checked and in good condition before shipping Specifications: • Battery model: BLP915 • Battery type: Li-ion Polymer Battery • Capacity: 4890mAh • Voltage: 3.87V Note: We will not be held responsible for any damages to your device that you may cause during the changing of replacement parts. Compatible with: •Oppo A57 (2022) 5G •Oppo A17 4G •Oppo A17k 4G Package included: •1 x Rechargeable Li-ion Polymer Battery (without Logo)