Samsung Galaxy Note 10+ Replacement Battery EB-BN972ABU 3.85V 4300mAh

Samsung Galaxy Note 10+ — 3.85V Li-Polymer Replacement Battery (EB-BN972ABU)

This 3.85V, 4300mAh Li-Polymer cell replaces the original battery in the Samsung Galaxy Note 10+ and Note 10 Plus, including SM-N975D and SC-01M variants. It matches the OEM footprint at 77.24 × 58.20 × 5.30mm and uses the same BMS handshake the charge IC expects. Capacity is rated at 16.56Wh — identical to the factory specification.

• Note 10+ platform fit: The SM-N97x series shares a single battery bay and connector pinout across regional variants. The BMS on this cell communicates over the same 4-pin fuel gauge line the Exynos and Snapdragon boards both use, so the OS receives cell data without a hardware mismatch.
• Bench tested on actual hardware: We cycled this cell on an SM-N975F board and monitored BMS handshake on the first charge. The charge IC accepted the cell, stepped through trickle, CC, and CV phases without fault codes, and the fuel gauge registered state-of-charge within two percentage points of coulomb-counter output.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before Samsung's Adaptive Fast Charging pushes high current into an uncalibrated cell — preventing erratic percentage readings from the first day.

Why the Note 10+ reports wrong battery percentage after a cell swap

The Note 10+ uses a coulomb-counter fuel gauge IC that tracks charge by integrating current in and out of the cell. When the original cell is removed, the IC loses its learned discharge curve. The replacement cell has a slightly different internal resistance profile, so the IC's stored model no longer matches real cell behaviour. One full slow-charge cycle — from below 5% to 100% without interruption — forces the IC to re-anchor its endpoints and recalculate state-of-charge against the new curve.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC hasn't finished recalibrating and the cell hits a voltage cliff under combined modem and display load. The 120Hz display and 5G radio can pull current spikes that sag a partially discharged cell below the BMS cutoff threshold — even when the OS still shows charge remaining. The fix is to let the phone discharge fully until it powers off on its own, then charge uninterrupted to 100%. After that cycle, the fuel gauge recalibrates its low-end cutoff and the shutdowns stop. Target a resting cell voltage of 3.85V at the 50% mark as a confirmation that calibration has settled.