SFR Staraddict Android Edition Compatible Battery 3.7V 1100mAh

SFR STARADDICT Android Edition — 3.7V Li-ion Replacement Battery

This is a 3.7V, 1100mAh Li-ion cell for the SFR STARADDICT Android Edition smartphone. It fits the original battery bay and connects to the same charge and protection circuit the phone was built around. Capacity is sourced from the product specification — 1100mAh, 4.07Wh.

• STARADDICT Android Edition fit: The STARADDICT Android Edition uses a fixed 3.7V single-cell architecture with a direct connector to the charge IC. This cell matches that voltage rail and connector pinout, keeping the fuel gauge IC in the loop for accurate state-of-charge reporting.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS held the charge cutoff at the correct upper voltage, and the low-voltage cutoff triggered cleanly before cell damage could occur.
• First-cycle fuel gauge recalibration: After fitting this cell, disable fast charging for one full discharge-charge cycle. The fuel gauge IC holds calibration data from the old cell's discharge curve. Running one slow cycle against the new cell lets the IC rebuild that curve before high-current charging begins.

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

This is a voltage cliff problem, not a capacity problem. When the modem transmits or the screen peaks in brightness, current draw spikes sharply. A new cell with an uncalibrated fuel gauge IC can report 25% remaining while the actual cell voltage has already dropped below the BMS cutoff threshold under that load. The phone shuts down to protect the cell, even though the percentage on screen looked safe. One full slow discharge-charge cycle lets the coulomb counter recalibrate against the new cell's real discharge curve, and the shutdowns stop.

Battery percentage jumping erratically after replacement

The fuel gauge IC in the STARADDICT learns the discharge curve of the cell it was calibrated against. Swap the cell, and the IC is reading a new cell's voltage response against old reference data — the mismatch shows up as percentage jumps of 5–15% in either direction. This is not a fault with the replacement cell. Run the phone down to auto-shutdown from a full charge, then charge it uninterrupted to 100% without fast charging enabled. After that single cycle the IC resets its coulomb counter baseline and percentage reporting stabilises.