About this replacement
ZTE Blade Max View / Z610DL — 3.85V Li-Polymer Replacement Battery (Li3939T44P8h896741)
This 3.85V, 3800mAh Li-Polymer cell replaces the factory battery in the ZTE Blade Max View, Blade Max View LTE, and Z610DL smartphones. It matches the OEM part number Li3939T44P8h896741 and fits the original battery bay without modification. Dimensions are 88.02 × 66.28 × 3.92mm — verify yours before ordering.
- Blade Max View / Z610DL platform fit: All three Fit Model variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell covers the full Z610DL family without adapter or wiring changes.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the Z610DL platform. The BMS accepted the charge IC handshake, held the cutoff voltage correctly, and showed no thermal anomalies across the charge curve.
- Fuel gauge recalibration on first use: Disable fast charging for the first complete discharge-charge cycle after installation. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated coulomb counter.
Sudden shutdown at 20–30% on the Blade Max View after a cell swap
The Z610DL's fuel gauge IC retains the discharge curve of the old, degraded cell. When a fresh cell is installed, the gauge's stored curve no longer matches the new cell's actual voltage profile. At the point where the old cell would have hit its voltage floor, the system reads a false low-voltage condition and shuts down — even though usable charge remains. One full discharge-charge cycle without fast charging forces the coulomb counter to remap against the replacement cell and clears the premature cutoff behaviour.
USB fast charge not activating on first cycle after replacement
On the first charge after installation, the Blade Max View's charge IC may not negotiate the fast-charge protocol with the new cell's BMS. This is normal — the BMS starts in a conservative state until it logs a completed cycle. Charge once at standard speed using a 5V/1A source. After that initial cycle completes, fast charging should negotiate correctly on subsequent connections.