About this replacement
Samsung Galaxy S10E — 3.85V Li-Polymer Replacement Battery (EB-BG970ABU)
This is a 3100mAh (11.94Wh) lithium-polymer replacement battery for the Samsung Galaxy S10E. It fits the SM-G970F/DS, SM-G9708/DS, and SM-G970N variants. Voltage is 3.85V nominal, matching the original cell specification.
- S10E variant coverage: The SM-G970F/DS, SM-G9708/DS, and SM-G970N all share the same battery bay dimensions and BMS connector pinout. One cell, EB-BG970ABU, covers the full range without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an SM-G970F unit. The BMS handshake completed on first connection, the charge IC accepted the cell without fault codes, and the fuel gauge IC began tracking state-of-charge correctly after one full cycle.
- 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 recalibrate its coulomb counter against the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell.
Sudden shutdown at 20–30% on a replacement S10E cell
The S10E's fuel gauge IC builds its state-of-charge map from the previous cell's discharge curve. When a new cell goes in, the stored curve no longer matches actual cell voltage under load. The modem and display draw current spikes that the old curve predicts the cell can handle — but the new cell hits its voltage cliff earlier. The phone shuts down to protect the cell even though the percentage readout still shows charge remaining. One full discharge-to-empty and a complete recharge resets the coulomb counter and eliminates the premature cutoff.
USB-PD fast charge not triggering on the first cycle after replacement
After a cell swap, Samsung's charge IC defaults to a conservative current limit until it receives a valid BMS handshake and logs a complete charge cycle. Plugging into an Adaptive Fast Charging or USB-PD charger may show normal charging speed instead of the fast-charge indicator on that first cycle. This is a BMS initialisation behaviour, not a fault with the charger or the replacement cell. Complete one full slow charge cycle first — fast charging resumes normally on subsequent cycles.