Samsung Galaxy Note 4 EB-BN916BBC Replacement Battery 3.85V 3000mAh

Samsung Galaxy Note 4 China Mobile — 3.85V Li-ion Replacement Battery (EB-BN916BBC)

This 3.85V, 3000mAh Li-ion cell replaces the original EB-BN916BBC battery in the Samsung Galaxy Note 4 China Mobile variant and fits SM-N910F, SM-N9109W, and SM-N9106W handsets. It slots directly into the removable battery bay and connects via the standard Samsung pogo-pin contact strip. Voltage and capacity match OEM spec: 3.85V nominal, 11.55Wh rated.

• China Mobile variant compatibility: The SM-N9109W and SM-N9106W carry a dual-SIM modem stack that pulls higher current spikes than single-SIM Note 4 models. This cell's BMS is rated for the same continuous discharge curve as the original EB-BN916BBC, so the modem handshake and voltage rail stay stable under simultaneous SIM polling.
• Bench tested on actual hardware: We cycled this cell through a full discharge-to-cutoff and charge-to-termination sequence on SM-N910F hardware. The BMS held the 4.35V charge termination threshold and tripped the low-voltage cutoff cleanly at 3.0V with no mid-cycle drops or false protection events.
• Fuel gauge recalibration on first use: On first use after 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 charge IC pushes higher current into an uncalibrated state.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage cliff issue, not a capacity fault. The fuel gauge IC is still running the coulomb-counter model it built against the old, degraded cell. When the new cell hits a steep voltage drop under modem or display load, the phone's protection circuit reads it as a critical-low event and shuts down — even though the reported percentage looks safe. One full discharge-charge cycle forces the IC to rebuild its internal model against the new cell's actual voltage curve. After that cycle, shutdowns at 20–30% typically stop.

USB fast charge not activating after battery swap

Samsung's adaptive fast charge handshake runs through the charge IC on the motherboard, not the battery BMS — but the IC checks cell impedance before stepping up voltage. A new cell starts with slightly higher impedance than a broken-in cell, so the charge IC may default to standard 5V on the first one or two cycles. This is not a fault with the battery or the charger. Use the original Samsung adaptive charger, complete one standard-rate charge cycle, and the IC will accept the fast-charge protocol on the next connection.