Oppo / Realme BLP711 Original-Capacity Replacement Battery (4000mAh)

The BLP711 is a highly distributed internal Lithium-ion Polymer replacement battery manufactured under the BBK Electronics network. It serves as the main power source for some of Oppo and Realme’s most heavily sold legacy budget models. Because these specific phones are widely used across Bangladesh as reliable daily drivers, an aging factory cell will eventually show common wear patterns: losing percentage counts abnormally fast below 30%, sudden shutdowns during phone calls, or keeping the system trapped in an infinite boot loop on the startup logo. Swapping in a fresh BLP711 cell entirely fixes these power delivery anomalies.

• Battery Model: BLP711

• Battery Type: Lithium-ion Polymer (Li-Po)

• True Capacity: 4000 mAh (Typical) / 3890 mAh (Rated)

• Standard Voltage: 3.85V

• Charging Voltage Limit: 4.4V

• Safety Engineering: Features an integrated dual-IC Protection Circuit Module (PCM). This microchip layout safeguards the smartphone’s logic board from sudden short circuits, prevents toxic chemical bloating from overcharging, and ensures accurate battery health reporting to the OS.

• Device Compatibility: This exact 4000mAh flat form factor and its modular flex connector dock match perfectly with:

  • Oppo A1k (Model: CPH1923)

  • Realme C2 (Models: RMX1941, RMX1945, RMX1943)