About this replacement
BlackView BV6000 / BV6000S — 3.8V Li-Polymer Replacement Battery (PHH756060P)
This 3.8V, 3000mAh Li-Polymer cell replaces the original PHH756060P battery in the BlackView BV6000 and BV6000S rugged smartphones. Both models share the same battery bay dimensions and connector pinout, so one part number covers both. Capacity figures are from the product specification — 3000mAh / 11.4Wh.
- BV6000 and BV6000S compatibility: Both variants use the same 60.06 × 59.72 × 5.87mm cell with an identical BMS connector and voltage rail. The BV6000S carries the same battery specification as the base model — no hardware difference in the battery bay between them.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a BV6000 unit. The BMS accepted charge current without interruption, and protection cutoffs triggered correctly at both the high and low voltage thresholds.
- Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-charge cycle. The fuel gauge IC on the BV6000 calibrates its coulomb counter against the new cell's discharge curve — skipping this step causes the percentage readout to drift or jump erratically in early cycles.
Sudden shutdown at 20–30% on the BV6000 after a cell swap
The BV6000's fuel gauge IC holds a discharge curve calibrated to the original cell. A new cell has a different internal resistance profile, so the voltage-to-percentage mapping is off from the start. Under modem or display load, the cell voltage drops sharply at a point the IC does not expect, and the phone cuts power before the percentage reaches zero. One full discharge-charge cycle with fast charging disabled lets the coulomb counter rebuild its reference curve against the new cell. After that cycle, low-percentage shutdowns should stop.
Phone warm near the battery area during the first few charges
A new Li-Polymer cell starts with higher internal impedance than a broken-in cell. The charge IC pushes current into that higher resistance, and some energy dissipates as heat in the battery area during the first two or three charges. This is normal and reduces as the cell breaks in. If warmth persists past the third full charge cycle or the phone becomes hot rather than warm, check that the charge IC is not forcing fast-charge current — disable fast charging until the cell has completed at least three full cycles.