About this replacement
Google Pixel 2 / G011A — 3.85V Li-Polymer Replacement Battery (G011A-B)
This 3.85V, 2700mAh lithium-polymer cell replaces the original battery in the Google Pixel 2 (model G011A). It carries OEM part numbers G011A-B, 35H00272-01M, and 35H00272-03M. Install it when the original cell no longer holds a useful charge after extended use.
- Pixel 2 and G011A compatibility: Both device variants share the same charge IC, connector pinout, and BMS handshake protocol — one cell covers both. No adapter or wiring change needed.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a Pixel 2 unit. The BMS negotiated correctly with the device charge controller and held voltage steady across screen-on and modem-active load conditions.
- Fuel gauge recalibration after swap: On first use after installation, disable fast charging and run one complete discharge-charge cycle at standard rate. This lets the fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current fast charging applies load to an uncalibrated gauge.
Why the Pixel 2 reports wrong battery percentage after a cell swap
The Pixel 2 uses a coulomb-counting fuel gauge IC that builds its charge model from the original cell's discharge curve. When a new cell goes in, the stored curve no longer matches the new cell's actual voltage-to-capacity relationship. The gauge may report 100% while the cell is not fully charged, or drop suddenly to a low number before the cell is genuinely depleted. One full slow discharge down to automatic shutdown — followed by a full charge — resets the learned curve and restores accurate percentage reporting.
Sudden shutdown at 20–30% remaining on the Pixel 2
This happens when the cell voltage drops below the BMS cutoff threshold under high instantaneous load — typically LTE modem activity, screen at full brightness, or GPS — even though the gauge still shows charge remaining. It is a voltage cliff, not a capacity fault. The cell cannot sustain the voltage rail under peak draw at that state of charge. Run two full discharge-charge cycles to let the gauge IC recalibrate, then check that shutdown no longer occurs above 3.6V under load.