About this replacement
Nabi Dreamtab 8" (DMTAB-NV08B) — 3.7V Li-Polymer Replacement Battery (PR-3667153)
This 3.7V, 4700mAh lithium-polymer battery replaces the original PR-3667153 cell in the Nabi Dreamtab 8" tablet (model DMTAB-NV08B). It powers the display, processor, and application layer. Replace it when the existing cell no longer holds adequate charge or fails to boot the device entirely.
- Dreamtab 8" and DMTAB-NV08B compatibility: Both model identifiers refer to the same hardware generation. They share the same connector pinout, cell dimensions (155 × 66 × 3.70mm), and charge IC handshake — so one cell covers both.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the Dreamtab 8" platform. The BMS accepted the new cell without error flags, and the charge IC completed a full cycle without thermal cutoff or voltage rejection.
- Fuel gauge recalibration after swap: Once installed, run the tablet down to automatic shutoff, then charge uninterrupted to 100% before use. This gives the fuel gauge IC a reference point against the new cell's actual capacity curve and clears the inaccurate percentage display that almost always appears after a swap.
Why the Dreamtab 8" shuts down at 15–25% remaining
The Dreamtab 8" runs its display and WiFi radio simultaneously under normal use, creating combined current draw spikes. An aged or freshly swapped cell can sag in voltage under that load before the fuel gauge reads zero. The tablet's protection circuit interprets the voltage sag as a critically low cell and triggers shutdown. One full discharge-to-cutoff cycle recalibrates the gauge and typically moves that premature shutoff threshold back to below 5%.
Percentage jumping or freezing after battery replacement
After a cell swap, the Dreamtab's fuel gauge IC still holds calibration data from the old cell. This causes the reported percentage to freeze, jump, or drop in large non-linear steps. It is a software-side mismatch, not a fault with the new battery. Run one complete cycle — full discharge to automatic shutoff, then a full uninterrupted charge to 100% — and the gauge IC re-anchors to the new cell's voltage curve.