Oppo Find 7 BLP569 Replacement Battery 3.8V 3000mAh

Oppo Find 7 / Find 7a — 3.8V Li-Polymer Replacement Battery (BLP569 / BLP575)

This is a 3000mAh, 3.8V Li-Polymer replacement battery for the Oppo Find 7 (X9007) and Find 7a (X9006) smartphones. It replaces OEM part numbers BLP569 and BLP575. Swap it when the original cell no longer holds a usable charge through a normal day of calls, messaging, and screen use.

• Find 7 and Find 7a compatibility: Both the standard Find 7 (X9007) and Find 7a (X9006) use the same battery bay dimensions and connector pinout. The BLP569 and BLP575 share the same 3.8V nominal voltage rail and physical footprint — 79.30 × 55.93 × 5.02mm — so either part number fits both handsets without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Find 7 platform and confirmed the BMS handshake completes correctly. The protection circuit engaged at the expected low-voltage cutoff, and the charge IC accepted current without flagging an error condition.
• Fuel gauge recalibration on first use: After fitting this cell, disable fast charging for the first complete discharge-charge cycle. The fuel gauge IC in the Find 7 is calibrated to the discharge curve of the old cell. Running one slow cycle first lets the coulomb counter map the new cell's curve before high-current charging begins.

Sudden shutdown at 20–30% on the Find 7 after a cell swap

The Find 7's Snapdragon 801 platform draws a sharp current spike when the modem transmits or the screen runs at full brightness. A new Li-Polymer cell with a slightly different internal resistance profile can hit a momentary voltage sag that crosses the BMS low-voltage cutoff before the fuel gauge reads zero. The phone interprets this as a hard shutdown, not a normal power-off. One full slow discharge-charge cycle lets the fuel gauge IC learn the actual voltage-versus-capacity curve of the new cell and stops the premature cutoff.

Oppo Find 7 not powering on after the replacement battery sat in storage

Li-Polymer cells shipped in storage state are typically charged to around 40–50% to reduce degradation in transit. If the cell drops below 2.5V during extended storage, the BMS enters lockout mode and the phone will not respond to the power button. Connect the device to a wall charger — not a USB port — and leave it for 15–20 minutes without pressing anything. The charge IC will trickle current into the cell until it clears the BMS recovery threshold, typically around 3.0V, at which point the phone will boot normally.