Samsung Galaxy Note 4 Replacement Battery EB-BN910BBE 3.85V 2800mAh

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

This is a 3.85V, 2800mAh 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. Use OEM part numbers EB-BN910BBE, EB-BN910BBK, EB-BN910BBU, or EB-BN910BBT to confirm fitment before ordering.

• Note 4 variant compatibility: Samsung released the Note 4 across multiple carrier and regional variants — SM-N910W8 for Canadian carriers, SM-N910R4 for US regional networks, SM-N910L for LG U+ in Korea. All share the same battery bay dimensions (98.80 × 41.40 × 5.60mm), the same 3.85V nominal voltage rail, and the same connector layout, so one cell covers the full lineup.
• Bench tested on actual hardware: We cycled this cell on an SM-N910 unit through three full discharge-charge cycles. The BMS accepted charge current without triggering over-voltage protection, and the fuel gauge IC tracked state-of-charge correctly by the second cycle.
• First-cycle calibration tip: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard current. This gives the fuel gauge IC a clean reference curve against the new cell before adaptive charging algorithms push higher current into an uncalibrated cell.

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

The Note 4's fuel gauge IC stores a discharge curve from the old cell in non-volatile memory. When a new cell goes in, the stored curve no longer matches actual cell behaviour, and the IC miscalculates remaining capacity. Under load — specifically when the Snapdragon 805's modem and display draw peak current simultaneously — the real cell voltage drops below the 3.4V cutoff before the percentage reaches zero. The phone shuts down at what looks like 20–30% remaining. One full discharge to automatic shutdown followed by an uninterrupted charge to 100% resets the coulomb counter and brings percentage readings back into alignment.

Phone won't power on after the replacement battery sat in storage

Li-ion cells self-discharge in storage at roughly 2–5% per month. If this battery shipped or sat unused long enough for cell voltage to drop below 2.5V, the BMS enters a lockout state to prevent damage and will refuse to accept a normal charge current. The phone shows nothing — no charging animation, no LED. Connect to a wall adapter rated at least 5V/1A and leave it for 20–30 minutes without pressing the power button; the charger IC delivers a trickle recovery current that brings the cell above the 2.8V re-initialisation threshold, after which normal charging resumes.