ZTE Nubia Z17 Mini Li3932T44P6h796137 Compatible Battery 3.85V 3000mAh

ZTE Nubia Z17 Mini — 3.85V Li-Polymer Replacement Battery (Li3932T44P6h796137)

This 3.85V, 3000mAh Li-Polymer battery replaces the original cell in the ZTE Nubia Z17 Mini, Nubia Z17 Mini Standard Edition, and NX569J. It matches the OEM part number Li3932T44P6h796137 and fits the same physical footprint at 78.56 × 60.90 × 3.70mm. The 11.55Wh capacity matches what the phone's power management IC expects to see on a fresh cell.

• Nubia Z17 Mini and NX569J fit: These variants share the same chassis dimensions, flex connector pinout, and 3.85V power rail. The BMS handshake on each model checks cell voltage and NTC thermistor resistance — this cell presents both within spec, so the system recognises it without errors.
• Bench tested on actual hardware: We cycled this cell on a Z17 Mini NX569J, monitoring BMS charge termination and cutoff voltage under screen-on and modem load. The protection circuit tripped correctly at the low-voltage threshold and accepted a full charge cycle without thermal flags.
• Fuel gauge recalibration on first install: After fitting this cell, disable fast charging and run one complete discharge down to auto-shutdown, then charge to 100% on standard current. This lets the coulomb counter recalibrate its discharge curve against the new cell before high-current charging is introduced to an uncalibrated gauge.

Sudden shutdown at 20–30% on the Nubia Z17 Mini after a cell swap

The Z17 Mini's fuel gauge IC holds a discharge curve from the old, degraded cell in its coulomb counter memory. When the new cell's actual voltage under modem or display load drops faster than that stored curve predicts, the phone sees a voltage cliff and shuts down as a protection response — even though the cell still has charge. This is not a fault with the replacement cell. One full discharge-to-shutdown followed by an uninterrupted charge to 100% flushes the old curve and resets the counter to the new cell's profile. After that cycle, percentage readings stabilise and cutoffs stop occurring above 10%.

ZTE Nubia Z17 Mini won't power on after sitting in storage

If a replacement cell — or the phone itself — has been stored for several months, the cell voltage can drop below the BMS lockout threshold of approximately 2.5V per cell. At that point the BMS disconnects the cell from the system entirely, and the phone shows no response to the power button or a standard charger. Connect the phone to a wall adapter rated at least 5V/1A and leave it for 15–20 minutes without pressing anything — the charge IC trickle-charges the cell until the BMS unlocks at around 3.0V, after which normal charging resumes. If there is still no response after 30 minutes, verify the charger is supplying voltage with a second device before concluding the cell is at fault.