About this replacement
BlackView Tab 8 / Tab 5 / Tab 6 — 3.8V Li-Polymer Replacement Battery (Li32A097HTT)
This is a 3.8V, 5500mAh (20.9Wh) lithium-polymer replacement battery for the BlackView Tab 8, Tab 5, and Tab 6 tablets. It fits devices listed under OEM part number Li32A097HTT and fit model 3210099. It restores power to the display, processor, and wireless radios when the original cell can no longer hold a usable charge.
- Tab 8, Tab 5, and Tab 6 compatibility: These three models share the same battery format, connector pinout, and BMS handshake protocol — all three draw from the same 3.8V cell architecture, so one part number covers all variants without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on Tab 8 hardware. The BMS accepted the cell without fault flags, voltage held stable under combined display and Wi-Fi load, and the charge IC cycled correctly from cutoff back to full.
- Fuel gauge reset after installation: After swapping this battery in, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This resets the fuel gauge IC calibration against the new cell and clears the inaccurate percentage readings that commonly appear after a swap.
Tablet shutting down at 15–25% remaining after battery replacement
This happens because the fuel gauge IC is still calibrated to the old cell's discharge curve. When the display and Wi-Fi radios draw current together, voltage drops sharply at the point the old curve predicted empty — and the tablet shuts down even though capacity remains. The fix is a single full discharge-to-shutoff followed by an uninterrupted charge to 100%. After that cycle, the fuel gauge remaps to the new cell and the early cutoff disappears.
Fast charging not available after battery swap
Some BlackView tablets require one completed standard charge cycle before the charge controller will negotiate fast-charge protocols with a new cell. Until that first cycle completes, the device defaults to a lower charge rate as a precaution. Plug in with the original or a USB-PD compatible charger and let it run a full charge uninterrupted. Fast charging typically becomes available from the second charge cycle onward.