Alcatel OT-960 Replacement Battery CAB31Y0014C2 3.7V 1500mAh

Alcatel OT-960 Series — 3.7V Li-ion Replacement Battery (CAB31Y0014C2)

This is a 3.7V, 1500mAh Li-ion battery replacing OEM part CAB31Y0014C2 in the Alcatel OT-960, OT-960C, AUTHORITY, and One Touch 960 smartphones. It restores power to devices with swollen, degraded, or dead original cells. Capacity is 5.55Wh, matching the factory specification for this handset.

• OT-960 series compatibility: The OT-960, OT-960C, and AUTHORITY share the same battery bay dimensions, connector pinout, and BMS handshake protocol — all three accept this cell without modification.
• Bench tested on actual hardware: We ran this cell through charge cycles on OT-960 hardware. The BMS accepted the new cell without fault codes, and the charge IC completed a full cycle without thermal interruption.
• Fuel gauge recalibration on first use: After fitting this battery, disable fast charging and run one complete discharge-to-charge cycle before resuming normal use. The fuel gauge IC on the OT-960 calibrates its coulomb counter against the cell's discharge curve. Skipping this step lets fast charge push current into an uncalibrated cell and delays accurate percentage reporting.

Sudden shutdown at 20–30% on the OT-960 after a cell swap

The OT-960 modem and display pull significant current spikes during calls and screen-on events. A new cell with a slightly different internal resistance curve can hit a local voltage sag that drops below the BMS cutoff threshold — even when the fuel gauge still reads 20–30%. The phone shuts down not because the cell is empty, but because the instantaneous load drags voltage below the protection floor. One full calibration cycle resets the fuel gauge IC's discharge model against the actual cell, which tightens the voltage floor estimate under load.

OT-960 not powering on after the replacement cell sat in storage

Li-ion cells self-discharge during storage. If the cell voltage drops below approximately 2.5V per cell, the BMS enters lockout mode and the phone will not respond to a normal charger — it shows nothing on screen. Connect the phone to a wall charger and leave it undisturbed for 20–30 minutes. The charge IC trickle-charges the cell back above the BMS recovery threshold, typically around 2.9V, at which point the BMS unlocks and normal charging resumes. If the screen remains blank after 30 minutes, check that the cable is delivering at least 5V with a known-good USB source.