Oppo Find X2 BLP769 Compatible Battery 7.74V 2000mAh

Oppo Find X2 / PDEM10 — 7.74V Li-Polymer Replacement Battery (BLP769)

This is a 7.74V, 2000mAh Li-Polymer replacement battery for the Oppo Find X2 and PDEM10 smartphones. It replaces OEM part BLP769 and fits the original battery bay without modification. Voltage and connector match the stock configuration exactly.

• Find X2 and PDEM10 platform compatibility: Both models run the same internal power architecture — identical connector pinout, BMS handshake protocol, and 7.74V nominal voltage rail. The same cell fits both without adapter or wiring change.
• Bench tested on actual hardware: We ran BLP769 cells on Find X2 units and monitored BMS communication across charge and discharge cycles. The protection circuit responded correctly to overcurrent, over-voltage, and thermal threshold events on every unit tested.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate its coulomb counter against the new cell's discharge curve before high-current charging pushes current into an uncalibrated state.

Why the Find X2 reports wrong battery percentage after a cell swap

The Find X2 uses a coulomb-counting fuel gauge IC that builds its charge model from repeated cycles on the original cell. When a new cell goes in, the IC still references the old discharge curve, so the percentage readout drifts from actual state of charge. This is not a fault with the replacement cell — it is the IC re-learning the new cell's internal resistance and capacity profile. One full discharge to 3.0V per cell followed by a complete charge corrects the baseline. Percentage accuracy stabilises over the next two to three full cycles.

Sudden shutdown at 20–30% on the Find X2 after replacement

This happens when the fuel gauge IC's stored voltage-to-capacity map does not match the new cell's actual voltage cliff. Under modem or display load, cell voltage drops faster than the IC predicts, crossing the BMS cutoff threshold while the screen still shows 20–30% remaining. The fix is a full recalibration cycle: drain the phone until it powers off automatically, then charge uninterrupted to 100% without fast charging enabled. After one full cycle, the IC resets its low-voltage cutoff prediction to match the replacement cell's real discharge profile.