Samsung Galaxy Note 3 Neo EB-BN750BBE Replacement Battery 3.8V 3100mAh

Samsung Galaxy Note 3 Neo — 3.8V Li-ion Replacement Battery (EB-BN750BBE)

This 3.8V, 3100mAh (11.78Wh) Li-ion cell replaces the original EB-BN750BBE / EB-BN750BBC battery in the Samsung Galaxy Note 3 Neo and Note 3 Mini. It fits SM-N7505 and SM-N7502 variants and several additional SM-N750 series models. Swap it in when the original cell no longer holds a usable charge or causes unexpected shutdowns.

• SM-N750 series compatibility: All covered models share the same 3.8V battery bay, connector pinout, and BMS handshake protocol. The EB-BN750BBE and EB-BN750BBC part numbers are interchangeable across this line — Samsung used both codes on the same cell depending on production batch.
• Bench tested on actual hardware: We ran this cell on an SM-N7505 unit. The BMS accepted the charge cycle without fault codes, voltage held stable under simultaneous display and modem load, and the protection circuit tripped correctly at the low-voltage cutoff threshold.
• Fuel gauge recalibration on first use: After installation, disable fast charging and run one full discharge-charge cycle at standard current. This lets the fuel gauge IC map the new cell's discharge curve before fast charging pushes higher current into an uncalibrated cell — skipping this step causes erratic percentage readings for the first several cycles.

Sudden shutdown at 20–30% on the Note 3 Neo

This is a voltage cliff issue, not a capacity issue. When an aged cell cannot sustain voltage under the combined load of the modem radio and the AMOLED display, the phone's power management IC cuts the circuit before the fuel gauge reads zero. A new cell with full electrochemical capacity holds the voltage rail stable through that load spike. If shutdowns continue after fitting this replacement, charge to 100%, then run one uninterrupted discharge to below 5% — this resets the coulomb counter baseline to the new cell's actual capacity curve.

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

Li-ion cells in storage self-discharge over time. If a replacement cell drops below approximately 2.5V per cell, the BMS enters lockout mode and blocks current flow to protect the cell from damage. The phone will show no response — no boot screen, no charging indicator. Connect the device to a wall adapter rather than a computer USB port, which supplies consistent 5V at higher current, and leave it for 20–30 minutes before attempting to power on. If the BMS accepts the charge, the indicator LED will activate and the phone will boot normally once it reaches around 3.0V.