TLi013BB Alcatel One Touch Pixi 3 Replacement Battery 3.7V

Alcatel One Touch Pixi 3 4.0 — 3.7V Li-ion Replacement Battery (TLi013BB)

This is a 3.7V, 1300mAh Li-ion replacement battery for the Alcatel One Touch Pixi 3 4.0 and Pixi 3 4.0 3G smartphones, including OT-4013 and OT-4013J variants. It replaces OEM part numbers TLi013BB and TLi013B2. The cell fits the standard Pixi 3 4.0 battery bay and connects to the phone's charge IC through the same three-contact layout as the original.

• OT-4013 series fit: The OT-4013, OT-4013J, and 3G variants all share the same physical bay dimensions and voltage rail. At 3.7V nominal, the cell sits within the threshold the phone's BMS expects at startup. No voltage mismatch means the phone boots without a BMS rejection event.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the OT-4013 platform. The BMS accepted the cell on first connection, the charge IC progressed normally through pre-charge, CC, and CV phases, and the fuel gauge IC registered a valid cell state without manual reset.
• Fuel gauge recalibration on first use: After installing this cell, disable fast charging and run one full discharge down to automatic shutdown, then charge uninterrupted to 100%. The fuel gauge IC on the Pixi 3 4.0 reads a stored discharge curve — after a cell swap, it needs one complete cycle against the new cell before its coulomb counter reports accurate percentages.

Why the Pixi 3 4.0 shuts down suddenly at 20–30% after a cell swap

The Pixi 3 4.0's fuel gauge IC was calibrated to the original cell's discharge curve. A new cell has a different internal resistance profile, so the voltage reading the IC reports and the actual cell voltage diverge under load. When the modem transmits or the screen backlights at full brightness, current draw spikes and the cell voltage drops sharply — faster than the IC predicts. The phone's protection circuit reads that as a low-voltage cutoff event and shuts down even though the displayed percentage still shows charge remaining. One full discharge-charge cycle resets the coulomb counter and brings the reported percentage back in line with actual cell state.

Phone warm near the battery during the first few charges

A new cell typically has higher impedance than a cycled one. The Pixi 3 4.0's charge IC pushes constant current into that higher-impedance cell during the CC phase, and the resistive loss generates more heat than you'd see on a broken-in cell. This is normal during the first two to three charge cycles and tapers as impedance drops with use. If the phone becomes hot to the touch — above 40°C — plug out and let the phone cool to room temperature before resuming charging at a lower-current USB source.