Asus Zenfone Go TV Replacement Battery B11P1510 3.8V 3000mAh

Asus Zenfone Go TV / X013DB — 3.8V Li-ion Replacement Battery (B11P1510)

This is a 3.8V, 3000mAh (11.4Wh) Li-ion replacement battery for the Asus Zenfone Go TV and X013DB. It fits the original battery slot and matches the OEM part numbers B11P1510 and B11Bj9c. If your Zenfone Go TV shuts down unexpectedly or no longer holds a charge through a normal day, this cell replaces the degraded original.

• Zenfone Go TV and X013DB fitment: Both model designations use the same battery bay dimensions, connector pinout, and BMS communication protocol. One replacement covers either variant without hardware modification.
• Bench tested on actual hardware: We cycled this cell through a full charge and load discharge on the X013DB platform. The BMS handshake completed on the first connection, charge current ramped correctly through CC/CV stages, and the protection circuit tripped at expected undervoltage threshold.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC build an accurate discharge curve against the new cell before high-current charging pushes current into an uncalibrated state. Skip this step and the OS will report incorrect percentages for several days.

Why the Zenfone Go TV reports wrong battery percentage after a cell swap

The Zenfone Go TV uses a coulomb counter and a stored discharge curve to estimate state of charge. When you install a new cell, that stored curve still reflects the old, degraded battery. Until the fuel gauge IC observes one full discharge-to-charge cycle on the new cell, its percentage readout will be inaccurate — often reading 100% and then dropping sharply. Run one full cycle from 100% down to automatic shutdown, then charge uninterrupted to 100%, and the gauge recalibrates against the new cell's actual voltage-to-capacity profile.

Sudden shutdown at 20–30% on the replacement cell

This happens when the modem radio or display draws a short burst of high current and the cell voltage drops below the BMS cutoff threshold — even though the fuel gauge still shows charge remaining. It is a voltage sag issue, not a capacity issue. The fuel gauge IC has not yet mapped where the new cell's voltage cliff sits under real load conditions. After two or three full discharge-charge cycles, the gauge recalibrates and the OS learns to trigger shutdown earlier, before the voltage sag crosses 3.0V per cell under load.