Realme X7 Max & Q3 Pro (BLP857) Li-Po Replacement Battery
The BLP857 is a high-quality Li-Polymer rechargeable replacement battery designed for select smartphones from Realme, including the X7 Max and Q3 Pro models. With a capacity of up to 4500mAh, it delivers reliable and efficient power performance for smooth daily usage, fast multitasking, and improved standby backup. Built with advanced lithium-polymer technology, it operates at a stable 3.87V, ensuring consistent energy output and safe charging performance. This battery is an ideal replacement solution for restoring original device battery life and performance.
Specifications
- Model: BLP857
- Battery Type: Li-Polymer
- Typical Capacity: 4500mAh (also listed as 4300mAh in some sources)
- Energy: 16.64Wh
- Nominal Voltage: 3.87V
- Compatibility: Realme X7 Max (RMX3031), Q3 Pro