EB-BC915ABE Samsung Galaxy C10 Replacement Battery 3.85V 3900mAh

Samsung Galaxy C10 / SM-C9150 — 3.85V Li-Polymer Replacement Battery (EB-BC915ABE)

This is a 3900mAh, 3.85V Li-Polymer battery for the Samsung Galaxy C10 (SM-C9150). It replaces OEM part EB-BC915ABE and fits the original battery compartment without modification. Use it to restore charge capacity in a device where the original cell has degraded.

• Galaxy C10 / SM-C9150 fitment: Both model designations share the same physical battery bay, connector pinout, and BMS handshake protocol. One replacement cell covers both variants — no adapters needed.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the SM-C9150 platform. The BMS accepted the cell without fault flags, charge termination triggered correctly at 4.35V, and protection cutoffs activated at expected low-voltage thresholds.
• Fuel gauge recalibration on first use: After installation, disable fast charging and run one complete discharge down to automatic shutdown, then charge to 100% at standard rate. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before high-current sessions begin.

Why the Galaxy C10 reports wrong battery percentage after a cell swap

The SM-C9150 uses a coulomb-counting fuel gauge IC that builds its charge model against the original cell's discharge curve over time. When a new cell goes in, that learned model no longer matches the physical chemistry — so the reported percentage drifts from actual remaining capacity. The gauge IC does not auto-reset on cell swap; it needs one full discharge-to-shutdown followed by a complete charge cycle to rebuild its reference table. Until that cycle completes, percentage jumps and early low-battery warnings are normal, not a fault with the replacement cell.

Sudden shutdown at 20–30% on the replacement cell

This happens when the modem radio or display draws a current spike the cell cannot sustain at that state of charge, causing terminal voltage to dip below the BMS cutoff threshold even though the reported percentage looks safe. A freshly installed cell with an uncalibrated fuel gauge is especially prone to this — the gauge shows 25% but the usable voltage headroom is already near the floor. Run the recalibration cycle described in the care tip above. After one full discharge-charge cycle at standard rate, the fuel gauge IC recalibrates its voltage-to-percentage mapping and these premature shutdowns stop.