EB-BG935ABE Samsung Galaxy S7 Edge Replacement Battery 3.85V 3600mAh

Samsung Galaxy S7 Edge — 3.85V Li-Polymer Replacement Battery (EB-BG935ABE)

This 3.85V, 3600mAh lithium-polymer cell replaces the original EB-BG935ABE battery in the Samsung Galaxy S7 Edge. It fits SM-G935A, SM-G935F, SM-G935P, and related SM-G935 variants. Voltage matches the S7 Edge power management IC exactly — no step-up or step-down conversion required.

• SM-G935 series compatibility: All SM-G935 variants share the same 3.85V power rail, the same physical footprint (97.70 × 42.06 × 4.85mm), and the same flex connector pinout. The battery management system talks to the same charge IC across every carrier variant, so one cell covers the full range.
• Bench tested on actual hardware: We ran this cell on an SM-G935F and monitored BMS handshake, charge termination, and thermal cutoff thresholds. The protection circuit responded correctly at both low-voltage cutoff and high-current draw during simultaneous screen-on and LTE activity.
• Fuel gauge recalibration on first cycle: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. The Galaxy S7 Edge coulomb counter is calibrated to the old cell's discharge curve — a full slow cycle resets that reference so percentage readings stay accurate from the second charge onward.

Why the S7 Edge reports wrong battery percentage after a cell swap

The Galaxy S7 Edge uses a coulomb-counting fuel gauge IC that builds its percentage model from the previous cell's charge and discharge history. When you install a new cell, that stored model no longer matches the actual chemistry it is measuring. The IC will over- or under-report state of charge until it observes at least one full discharge-charge cycle on the new cell. After that cycle, the fuel gauge reanchors its curve to the replacement cell and percentage reporting stabilises.

Sudden shutdown at 20–30% remaining after replacement

This is a voltage-cliff failure, not a capacity problem. Under combined modem transmission and display load, the cell voltage drops sharply below the threshold the power management IC will sustain — even when the reported percentage looks safe. The phone interprets the voltage drop as a critical low-power event and shuts down instantly. To confirm this is the cause, charge to 100%, then run the screen at full brightness with mobile data active and watch for shutdown above 25% — if it cuts out, let the phone discharge fully to 0%, then charge uninterrupted to 100% to give the fuel gauge a clean calibration cycle.