Sony Ericsson Xperia XZ Compatible Battery 3.8V 2850mAh LIS1632ERPC

Sony Ericsson Xperia XZ — 3.8V Li-Polymer Replacement Battery (LIS1632ERPC)

This 3.8V, 2850mAh Li-Polymer cell replaces the original LIS1632ERPC battery in the Sony Ericsson Xperia XZ and Xperia XZ Dual SIM (F8331, F8332). It fits directly into the existing battery bay and connects to the same flex cable and fuel gauge IC. Swap it in when the original cell no longer holds charge or causes unexpected shutdowns.

• Xperia XZ and XZ Dual SIM fit: Both the single-SIM F8331 and dual-SIM F8332 share the same battery compartment geometry, flex connector pin-out, and BMS handshake protocol — one cell covers both variants without modification.
• Bench tested on actual hardware: We ran this cell through charge and load cycles on the Xperia XZ platform. The BMS communicated correctly with the device charge IC, and the coulomb counter accepted the new cell curve without throwing fault flags.
• Fuel gauge recalibration on first use: After installation, disable Qnovo adaptive charging and run one complete discharge-charge cycle before enabling fast charging. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging begins on an uncalibrated cell.

Sudden shutdown at 20–30% on the Xperia XZ after a cell swap

The Xperia XZ fuel gauge IC retains the discharge curve from the old, degraded cell. When a new cell is installed, the stored curve no longer matches actual cell voltage behaviour. Under modem or display load, the phone sees a voltage reading that triggers low-battery shutdown even though capacity remains. One full discharge-to-empty and charge-to-full cycle rewrites the coulomb counter baseline and stops the early cutoff.

USB fast charge not activating on the first cycle after replacement

The Xperia XZ charge IC runs a BMS handshake at the start of each charge session. On a freshly installed cell, the BMS may report an unverified state-of-charge, causing the charge IC to default to a lower 500mA trickle rate rather than engaging Qualcomm Quick Charge. This is not a fault — it clears after the first complete charge cycle. Charge the device to 100% from a QC-capable adapter, then unplug and replug to confirm fast charging activates at roughly 9V input.