Alcatel OT-918 Mix CAB32A0001C1 Replacement Battery 3.7V 1650mAh

Alcatel OT-918 Mix — 3.7V Li-ion Replacement Battery (CAB32A0001C1)

This is a 3.7V Li-ion cell rated at 1650mAh (6.11Wh), built to fit the Alcatel OT-918 Mix and One Touch 918 Mix smartphones. It also covers the EE40 and EE40VB variants that share the same connector and physical footprint. OEM part numbers CAB32A0001C1, TLiB5AB, and CAB32A0000C2 all cross-reference to this cell.

• OT-918 Mix and EE40 variant fit: These models share an identical 51.83 × 50.78 × 5.41mm cavity, the same three-pin connector, and a compatible BMS handshake. Swapping between variants uses the same cell — no adapter or modification needed.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on an OT-918 Mix body. The BMS accepted charge current without tripping, voltage held steady under screen-on and call load, and the protection circuit triggered correctly at the low-voltage cutoff threshold.
• Fuel gauge recalibration on first use: On first use after installation, run one full discharge to auto-off and charge back to 100% without interruption. This lets the phone's fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before reporting accurate percentages.

Sudden shutdown at 20–30% on the OT-918 Mix after a cell swap

The OT-918 Mix's fuel gauge IC retains the discharge curve from the old cell in its coulomb counter. When the replacement cell hits a voltage point the gauge hasn't seen before, the phone reads available charge as zero and cuts power — even though the reported percentage looks safe. This is a calibration mismatch, not a faulty cell. One complete discharge-to-auto-off followed by a full charge to 100% resets the counter against the new curve and stops the premature shutdowns.

OT-918 Mix not powering on after sitting in storage

If the phone sat unused for weeks or months, the cell may have self-discharged below the BMS lockout threshold — typically under 2.5V per cell. At that voltage, the BMS opens the protection circuit and blocks all current flow, so the phone appears completely dead even on charge. Connect the phone to a low-current USB charger and leave it for 20–30 minutes without pressing the power button — the charge IC on most OT-918 units will trickle-charge the cell back above the 2.5V re-enable threshold. Once the charging indicator appears on screen, normal charging resumes.