Samsung Galaxy Note 4 EB-BN910BBE Replacement Battery 3.85V 3220mAh

Samsung Galaxy Note 4 — 3.85V Li-ion Replacement Battery (EB-BN910BBE)

This is a 3.85V, 3220mAh Li-ion cell that replaces the original battery in the Samsung Galaxy Note 4. It fits SM-N910W8, SM-N910R4, SM-N910L, and over a dozen other Note 4 variants. OEM part numbers covered include EB-BN910BBE, EB-BN910BBK, EB-BN910BBU, and EB-BN910BBT.

• Note 4 variant compatibility: Samsung released the Note 4 across multiple carrier and regional SKUs — SM-N910 series devices all share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell covers the full lineup.
• Bench tested on actual hardware: We ran this cell in an SM-N910 unit and confirmed the BMS accepted charge immediately, reported state-of-charge to the OS, and did not trigger thermal cutoff during a full charge cycle under standard 2A input.
• Fuel gauge recalibration on first use: On first installation, disable fast charging and run one complete discharge-to-charge cycle at standard current. This lets the fuel gauge IC map the new cell's discharge curve before the coulomb counter locks in its reference points — skipping this step causes erratic percentage readings.

Sudden shutdown at 20–30% on the Note 4 after a cell swap

This happens because the fuel gauge IC is still running the discharge curve it built against the old, degraded cell. A new cell has a steeper voltage cliff in the lower charge range than the IC expects, so the phone interprets a sharp voltage drop as a hard low-battery event and cuts power before the percentage reaches zero. The fix is straightforward: run two full discharge-charge cycles without fast charging. After those cycles, the coulomb counter recalibrates and the shutdown threshold aligns with actual cell voltage — target a resting voltage of 3.85V at full charge to confirm the gauge is reading correctly.

Note 4 not powering on after the replacement battery sat in storage

Li-ion cells shipped or stored at low state-of-charge can drop below the BMS lockout threshold — typically 2.5V per cell — during transit or shelf time. When that happens, the BMS opens the protection circuit and the phone shows no sign of life, even on charger. Connect the phone to a wall adapter rated at 5V/2A and leave it for 15–20 minutes without pressing the power button — the charge IC needs time to trickle current past the lockout threshold before the BMS will close the circuit. Once the BMS resets, the phone will show a low-battery screen and boot normally.