Orange Fova CPLD-348 Replacement Battery 3.7V 2000mAh

Orange Fova — 3.7V Li-Polymer Replacement Battery (CPLD-348)

This 3.7V, 2000mAh Li-Polymer battery replaces the original CPLD-348 cell in the Orange Fova smartphone. It restores power capacity to a phone that has lost charge from a degraded or failed cell. Capacity is 2000mAh (7.4Wh) — matching the factory specification for this handset.

• Orange Fova fit: The CPLD-348 uses a connector and cell footprint specific to the Fova chassis. Dimensions are 68.56 × 50.00 × 4.65mm — the BMS handshake and voltage rail match what the Fova charge IC expects at 3.7V nominal.
• Bench tested on actual hardware: We ran the cell through full charge and discharge cycles on the bench. The BMS held charge termination correctly and the protection circuit tripped as expected on overcurrent — no runaway, no false cutoffs under normal load.
• Fuel gauge recalibration after swap: On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC build a new discharge curve against the replacement cell before high-current charging begins on an uncalibrated counter.

Why the Fova reports wrong battery percentage after a cell swap

The Fova uses a fuel gauge IC that tracks charge using a coulomb counter calibrated to the original cell's discharge curve. When you install a new cell, that curve no longer matches what the IC expects, so the percentage readout drifts. The gauge may report 50% while the actual cell state is significantly lower or higher. One full discharge to 3.0V shutdown followed by an uninterrupted charge to 4.2V resets the calibration window and corrects the display.

Sudden shutdown at 20–30% on the replacement cell

This happens when the fuel gauge IC still references the old cell's voltage-to-capacity mapping. The new cell hits a voltage cliff under load — modem or screen draw pulls current the gauge didn't predict — and the phone shuts off before the reported percentage reaches zero. It is a calibration problem, not a faulty cell. Run one full uninterrupted charge-discharge cycle so the coulomb counter resets; the shutdowns typically stop once the gauge has tracked the full voltage range from 4.2V down to the 3.0V cutoff.