About this replacement
Samsung Galaxy Note 10 — 3.85V Li-Polymer Replacement Battery (EB-BN970ABU)
This 3.85V Li-Polymer battery replaces the EB-BN970ABU cell in the Samsung Galaxy Note 10, SM-N9700, SM-N970U1, SM-N970W, and related variants. Capacity is 2900mAh (11.17Wh), matching the original cell specification. It fits devices where the original cell has degraded and can no longer hold a usable charge through a full day.
- Note 10 series compatibility: The SM-N970 variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell fits the full range without physical modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Note 10 unit. The BMS accepted the cell, thermal monitoring stayed within spec, and the charge IC handed off correctly at 4.35V termination voltage.
- 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 build an accurate discharge curve against the new cell before high-current fast charging pushes current into an uncalibrated coulomb counter.
Sudden shutdown at 20–30% on the replacement cell
This is a voltage cliff problem. The fuel gauge IC is still running the discharge model it built on the old, degraded cell. When modem activity or display load pulls a high current burst, the new cell's voltage drops sharply at the bottom of its curve. The system reads that drop as a critical low and shuts down, even though capacity remains. One full discharge-charge cycle without fast charging forces the IC to rebuild its model against the actual cell chemistry.
USB-PD fast charge not accepted on the first cycle after replacement
After a cell swap, the charge IC on the Note 10 sometimes refuses to negotiate fast charge protocols until it completes one standard charge pass. The BMS flags the new cell as unverified and caps input current as a precaution. Plug into a standard 5V/1A charger and run one full cycle to completion. After that cycle, the USB-PD handshake should restore on the next fast-charge connection.