ZTE F952 Replacement Battery Li3713T42P3h 3.7V 1300mAh

ZTE F952 / V880 Series — 3.7V Li-ion Replacement Battery (Li3713T42P3h444865)

This is a 3.7V, 1300mAh Li-ion cell replacing part number Li3713T42P3h444865 (also cross-referenced as Li3712T42P3h444865) in ZTE handsets. It fits the F952, F950, V880, N73, and related models. Install it when the original cell no longer holds a charge or the phone shuts down unexpectedly under load.

• F952 / V880 platform fit: These models share the same physical footprint, connector pinout, and BMS handshake protocol, which is why one cell covers the full range. Swapping between compatible models does not require firmware changes or hardware modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on ZTE platform hardware. The BMS accepted the charge current without dropping into protection mode, and the fuel gauge IC registered correct state-of-charge readings after one full cycle.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC build an accurate discharge curve against the new cell before high-current charging pushes current into an uncalibrated state.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage-cliff issue, not a capacity defect. Under modem or screen load, the cell voltage drops sharply below the threshold the OS expects at that reported percentage. The fuel gauge IC is still calibrated to the old cell's discharge curve, so it misreads available charge. Run one full discharge to near-zero, then charge uninterrupted to 100% — after that cycle, the coulomb counter realigns to the new cell and the shutdowns stop.

Phone not powering on after the battery sat discharged in storage

If the cell voltage drops below approximately 2.5V, the BMS enters lockout mode to prevent damage and will not pass current to the phone. Plugging into a standard charger often shows nothing — the phone appears dead. Connect to a wall adapter rather than a USB port, leave it for 20–30 minutes without pressing the power button, and let the charge IC trickle current past the BMS lockout threshold. Once the cell reaches around 3.0V, normal charging resumes.