ZTE Blade V8 Lite Compatible Battery Li3925T44P6h765638 3.85V

ZTE Blade V8 Lite — 3.85V Li-Polymer Replacement Battery (Li3925T44P6h765638)

This 3.85V 2500mAh Li-Polymer cell replaces the original battery in the ZTE Blade V8 Lite, Blade V8 Lite Dual SIM, and Blade V8 Lite Dual SIM TD-LTE. It matches the OEM part number Li3925T44P6h765638 and fits the factory battery compartment at 75.58 × 55.88 × 3.55mm. Voltage, connector, and BMS communication all match the original spec.

• V8 Lite variant compatibility: All three Blade V8 Lite variants — standard, Dual SIM, and Dual SIM TD-LTE — share the same battery bay dimensions, 3.85V rail, and connector pinout. One cell part number covers all three builds without modification.
• Bench tested on actual hardware: We cycled this cell on the V8 Lite mainboard and confirmed the BMS handshake completed correctly. Charge current, temperature reporting, and charge termination all behaved within OEM parameters across multiple cycles.
• Fuel gauge recalibration on first install: On first use after fitting this cell, disable fast charging and run one full discharge-to-charge cycle. The fuel gauge IC calibrates its coulomb counter against the new cell's actual discharge curve — skipping this step can cause the percentage display to read incorrectly for the first several cycles.

Sudden shutdown at 20–30% on the ZTE Blade V8 Lite

This happens when the cell voltage drops sharply under high-draw loads — mobile data, GPS, or screen-on at full brightness — faster than the fuel gauge IC predicted. The phone's protection circuit sees the voltage cliff and shuts down even though the percentage display still showed charge remaining. It is more common immediately after a cell swap because the coulomb counter is still calibrated to the old cell's discharge curve. Run two full discharge-charge cycles without fast charging to let the IC remap against the new cell — the shutdowns will stop once the curve is accurate.

Phone won't power on after the replacement battery sat in storage

Li-Polymer cells self-discharge in storage, and if this battery dropped below approximately 2.5V per cell before installation, the BMS enters a lockout state and blocks normal charging to prevent damage. The phone will show nothing on screen when connected to a charger — no charging animation, no LED. Connect the phone to a low-current 5V USB source (a standard wall adapter, not a fast charger) and leave it for 20–30 minutes without attempting to power on. Once the cell voltage recovers above the BMS re-entry threshold, the charge IC takes over and normal charging resumes.