LG V10 BL-45B1F Replacement Battery 3.85V 3000mAh

LG V10 / VS990 / H960 — 3.85V Li-ion Replacement Battery (BL-45B1F)

This is a 3000mAh, 3.85V Li-ion cell that replaces the original BL-45B1F battery in the LG V10 and its carrier variants. It fits the VS990 (Verizon), H960, and H960YK among 34 additional model numbers that share the same physical format and connector. If your V10 won't hold a charge or shuts down unexpectedly, this is the direct cell replacement.

• V10 variant coverage: The VS990, H960, H960YK, and related models all draw from the same 3.85V rail and use the same BL-45B1F footprint. LG used a consistent battery platform across these carrier and regional builds, so one cell fits all of them without modification.
• Bench tested on actual hardware: We ran this cell in a V10 chassis and monitored the BMS handshake on insertion. The protection circuit accepted charge immediately, current draw stabilised within the first cycle, and the charge IC did not flag a fault at any point during testing.
• Fuel gauge recalibration on first use: After installing this cell, disable fast charging and run one complete discharge-charge cycle at standard rate. The V10's fuel gauge IC was calibrated to your old cell's discharge curve — giving it one clean cycle at low current lets it remap to the new cell before fast charging pushes higher current into an uncalibrated state.

Why the V10 reports wrong battery percentage after a cell swap

The LG V10 uses a coulomb counter and a stored discharge curve to estimate state of charge. That curve was built against your original cell, which aged and developed its own impedance profile over time. When a new cell goes in, the fuel gauge IC is still referencing that old curve, so percentage readings can be off by 10–20% until it recalibrates. One full discharge to device shutdown followed by a full charge at standard rate resets the reference and brings the percentage display back in line.

Sudden shutdown at 20–30% on the replacement cell

This happens when the modem, screen, or processor pulls a short burst of high current and the voltage drops below the BMS cutoff threshold before the gauge shows zero. A new cell with an uncalibrated fuel gauge makes this worse — the reported percentage doesn't reflect actual cell voltage under load. Charge the phone to 100%, let it discharge in normal use without interruption, and charge again without fast charging. After that first calibration cycle, the cutoff should track closer to 3.2–3.3V per cell rather than tripping at an inflated percentage.